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Name: ________________________ Class: ___________________ Date: __________ ID: A Geometry M2: Unit 3 Practice Exam Short Answer 1. In triangle ABC, A is a right angle and mB 45. Find BC. If your answer is not an integer, leave it in simplest radical form. 2. Find the length of the leg. If your answer is not an integer, leave it in simplest radical form. 3. Find the lengths of the missing sides in the triangle. Write your answers as integers or as decimals rounded to the nearest tenth. 4. Find the value of the variable. If your answer is not an integer, leave it in simplest radical form. 1 Name: ________________________ ID: A 5. The area of a square garden is 242 m2. How long is the diagonal? 6. Quilt squares are cut on the diagonal to form triangular quilt pieces. The hypotenuse of the resulting triangles is 10 inches long. What is the side length of each piece? 7. The length of the hypotenuse of a 30°–60°–90° triangle is 4. Find the perimeter. Find the value of the variable(s). If your answer is not an integer, leave it in simplest radical form. 8. 9. Not drawn to scale 10. 11. A piece of art is in the shape of an equilateral triangle with sides of 13 in. Find the area of the piece of art. Round your answer to the nearest tenth. 12. A sign is in the shape of a rhombus with a 60° angle and sides of 9 cm long. Find its area to the nearest tenth. 2 Name: ________________________ ID: A 13. A conveyor belt carries supplies from the first floor to the second floor, which is 24 feet higher. The belt makes a 60° angle with the ground. How far do the supplies travel from one end of the conveyor belt to the other? Round your answer to the nearest foot. If the belt moves at 75 ft/min, how long, to the nearest tenth of a minute, does it take the supplies to move to the second floor? 14. Find the missing value to the nearest hundredth. 15. Find the missing value to the nearest hundredth. 16. Find the missing value to the nearest hundredth. 17. Write the tangent ratios for Y and Z. 18. Write the tangent ratios for P and Q. 3 Name: ________________________ ID: A 19. Write the ratios for sin A and cos A. Use a trigonometric ratio to find the value of x. Round your answer to the nearest tenth. 20. 21. Find the value of x. Round to the nearest tenth. 22. 4 Name: ________________________ ID: A 23. 24. 25. 26. Viola drives 170 meters up a hill that makes an angle of 6 with the horizontal. To the nearest tenth of a meter, what horizontal distance has she covered? Find the value of x. Round to the nearest degree. 27. 5 Name: ________________________ ID: A 28. Find the value of x to the nearest degree. 29. 30. What is the description of 2 as it relates to the situation shown? Find the value of x. Round the length to the nearest tenth. 31. 6 Name: ________________________ ID: A 32. 33. 34. 35. 7 Name: ________________________ ID: A 36. To approach the runway, a pilot of a small plane must begin a 9 descent starting from a height of 1125 feet above the ground. To the nearest tenth of a mile, how many miles from the runway is the airplane at the start of this approach? Find the area of the trapezoid. Leave your answer in simplest radical form. 37. 38. 39. 8 Name: ________________________ ID: A 40. What is the area of the kite? 41. A kite has diagonals 9.2 ft and 8 ft. What is the area of the kite? 42. Find the area of the rhombus. Leave your answer in simplest radical form. 43. Find the area of the rhombus. 9 Name: ________________________ ID: A The figures are similar. Give the ratio of the perimeters and the ratio of the areas of the first figure to the second. The figures are not drawn to scale. 44. 45. 46. The widths of two similar rectangles are 16 cm and 14 cm. What is the ratio of the perimeters? Of the areas? 47. The trapezoids are similar. The area of the smaller trapezoid is 558 m2 . Find the area of the larger trapezoid to the nearest whole number. 48. The area of a regular octagon is 35 cm 2 . What is the area of a regular octagon with sides three times as long? 10 Name: ________________________ ID: A 49. The triangles are similar. The area of the larger triangle is 1589 ft 2 . Find the area of the smaller triangle to the nearest whole number. 50. Hiram raises earthworms. In a square of compost 4 ft by 4 ft, he can have 1000 earthworms. How many earthworms can he have if his square of compost has a side length that is 7 times longer? 51. Find the similarity ratio and the ratio of perimeters for two regular pentagons with areas of 49 cm2 and 169 cm2 . 11 ID: A Geometry M2: Unit 3 Practice Exam Answer Section SHORT ANSWER 1. ANS: 11 2 ft PTS: OBJ: STA: TOP: DOK: 2. ANS: 8 2 1 DIF: L2 REF: 8-2 Special Right Triangles 8-2.1 Use the properties of 45°-45°-90° and 30°-60°-90° triangles MA.912.G.5.1| MA.912.G.5.3| MA.912.G.5.4 8-2 Problem 1 Finding the Length of the Hypotenuse KEY: special right triangles DOK 1 PTS: 1 DIF: L3 REF: 8-2 Special Right Triangles OBJ: 8-2.1 Use the properties of 45°-45°-90° and 30°-60°-90° triangles STA: MA.912.G.5.1| MA.912.G.5.3| MA.912.G.5.4 TOP: 8-2 Problem 2 Finding the Length of a Leg KEY: special right triangles | hypotenuse | leg DOK: DOK 1 3. ANS: x = 9.9, y = 7 PTS: OBJ: STA: TOP: KEY: 4. ANS: 1 DIF: L4 REF: 8-2 Special Right Triangles 8-2.1 Use the properties of 45°-45°-90° and 30°-60°-90° triangles MA.912.G.5.1| MA.912.G.5.3| MA.912.G.5.4 8-2 Problem 2 Finding the Length of a Leg special right triangles | hypotenuse | leg DOK: DOK 1 5 2 2 PTS: OBJ: STA: TOP: KEY: 5. ANS: 22 m PTS: OBJ: STA: KEY: 1 DIF: L3 REF: 8-2 Special Right Triangles 8-2.1 Use the properties of 45°-45°-90° and 30°-60°-90° triangles MA.912.G.5.1| MA.912.G.5.3| MA.912.G.5.4 8-2 Problem 2 Finding the Length of a Leg special right triangles | hypotenuse | leg DOK: DOK 1 1 DIF: L4 REF: 8-2 Special Right Triangles 8-2.1 Use the properties of 45°-45°-90° and 30°-60°-90° triangles MA.912.G.5.1| MA.912.G.5.3| MA.912.G.5.4 TOP: 8-2 Problem 3 Finding Distance special right triangles | diagonal DOK: DOK 2 1 ID: A 6. ANS: 5 2 PTS: OBJ: STA: KEY: 7. ANS: 6+2 1 DIF: L3 REF: 8-2 Special Right Triangles 8-2.1 Use the properties of 45°-45°-90° and 30°-60°-90° triangles MA.912.G.5.1| MA.912.G.5.3| MA.912.G.5.4 TOP: 8-2 Problem 3 Finding Distance special right triangles | word problem DOK: DOK 2 PTS: OBJ: STA: TOP: DOK: 8. ANS: 6 3 1 DIF: L4 REF: 8-2 Special Right Triangles 8-2.1 Use the properties of 45°-45°-90° and 30°-60°-90° triangles MA.912.G.5.1| MA.912.G.5.3| MA.912.G.5.4 8-2 Problem 4 Using the Length of One Side KEY: special right triangles | perimeter DOK 3 3 PTS: 1 DIF: L2 REF: 8-2 Special Right Triangles OBJ: 8-2.1 Use the properties of 45°-45°-90° and 30°-60°-90° triangles STA: MA.912.G.5.1| MA.912.G.5.3| MA.912.G.5.4 TOP: 8-2 Problem 4 Using the Length of One Side KEY: special right triangles | leg | hypotenuse DOK: DOK 2 9. ANS: x = 30, y = 10 3 PTS: OBJ: STA: TOP: KEY: 10. ANS: x = 17 1 DIF: L3 REF: 8-2 Special Right Triangles 8-2.1 Use the properties of 45°-45°-90° and 30°-60°-90° triangles MA.912.G.5.1| MA.912.G.5.3| MA.912.G.5.4 8-2 Problem 4 Using the Length of One Side special right triangles | leg | hypotenuse DOK: DOK 2 PTS: OBJ: STA: TOP: KEY: 1 DIF: L3 REF: 8-2 Special Right Triangles 8-2.1 Use the properties of 45°-45°-90° and 30°-60°-90° triangles MA.912.G.5.1| MA.912.G.5.3| MA.912.G.5.4 8-2 Problem 4 Using the Length of One Side special right triangles | leg | hypotenuse DOK: DOK 2 3 , y = 34 2 ID: A 11. ANS: 73.2 in.2 PTS: 1 DIF: L2 REF: 8-2 Special Right Triangles OBJ: 8-2.1 Use the properties of 45°-45°-90° and 30°-60°-90° triangles STA: MA.912.G.5.1| MA.912.G.5.3| MA.912.G.5.4 TOP: 8-2 Problem 5 Applying the 30º-60º-90º Triangle Theorem KEY: area of a triangle | word problem | problem solving DOK: DOK 2 12. ANS: 70.1 cm2 PTS: 1 DIF: L3 REF: 8-2 Special Right Triangles OBJ: 8-2.1 Use the properties of 45°-45°-90° and 30°-60°-90° triangles STA: MA.912.G.5.1| MA.912.G.5.3| MA.912.G.5.4 TOP: 8-2 Problem 5 Applying the 30º-60º-90º Triangle Theorem KEY: rhombus | word problem | problem solving DOK: DOK 2 13. ANS: 28 ft; 0.4 min PTS: 1 DIF: L4 REF: 8-2 Special Right Triangles OBJ: 8-2.1 Use the properties of 45°-45°-90° and 30°-60°-90° triangles STA: MA.912.G.5.1| MA.912.G.5.3| MA.912.G.5.4 TOP: 8-2 Problem 5 Applying the 30º-60º-90º Triangle Theorem KEY: special right triangles | multi-part question | word problem | problem solving DOK: DOK 3 14. ANS: 89.33 PTS: 1 DIF: L3 REF: 8-3 Trigonometry OBJ: 8-3.1 Use the sine, cosine, and tangent ratios to determine side lengths and angle measures in right triangles STA: MA.912.G.5.4| MA.912.T.2.1 TOP: 8-3 Problem 3 Using Inverses KEY: angle measure using tangent DOK: DOK 1 15. ANS: 60 PTS: 1 DIF: L3 REF: 8-3 Trigonometry OBJ: 8-3.1 Use the sine, cosine, and tangent ratios to determine side lengths and angle measures in right triangles STA: MA.912.G.5.4| MA.912.T.2.1 TOP: 8-3 Problem 3 Using Inverses KEY: angle measure using cosine DOK: DOK 1 16. ANS: 4.59 PTS: 1 DIF: L3 REF: 8-3 Trigonometry OBJ: 8-3.1 Use the sine, cosine, and tangent ratios to determine side lengths and angle measures in right triangles STA: MA.912.G.5.4| MA.912.T.2.1 TOP: 8-3 Problem 3 Using Inverses KEY: angle measure using sine DOK: DOK 1 3 ID: A 17. ANS: tan Y 3 5 ; tan Z 5 3 PTS: 1 DIF: L3 REF: 8-3 Trigonometry OBJ: 8-3.1 Use the sine, cosine, and tangent ratios to determine side lengths and angle measures in right triangles STA: MA.912.G.5.4| MA.912.T.2.1 TOP: 8-3 Problem 1 Writing Trigonometric Ratios KEY: leg adjacent to angle | leg opposite angle | tangent | tangent ratio DOK: DOK 1 18. ANS: 20 21 tan P ; tan Q 21 20 PTS: 1 DIF: L2 REF: 8-3 Trigonometry OBJ: 8-3.1 Use the sine, cosine, and tangent ratios to determine side lengths and angle measures in right triangles STA: MA.912.G.5.4| MA.912.T.2.1 TOP: 8-3 Problem 1 Writing Trigonometric Ratios KEY: tangent ratio | tangent | leg opposite angle | leg adjacent to angle DOK: DOK 1 19. ANS: 3 4 sin A , cos A 5 5 PTS: 1 DIF: L2 REF: 8-3 Trigonometry OBJ: 8-3.1 Use the sine, cosine, and tangent ratios to determine side lengths and angle measures in right triangles STA: MA.912.G.5.4| MA.912.T.2.1 TOP: 8-3 Problem 1 Writing Trigonometric Ratios KEY: sine | cosine | sine ratio | cosine ratio DOK: DOK 1 20. ANS: 24.7 PTS: 1 DIF: L2 REF: 8-3 Trigonometry OBJ: 8-3.1 Use the sine, cosine, and tangent ratios to determine side lengths and angle measures in right triangles STA: MA.912.G.5.4| MA.912.T.2.1 TOP: 8-3 Problem 2 Using a Trigonometric Ratio to Find Distance KEY: side length using tangent | tangent | tangent ratio DOK: DOK 2 21. ANS: 4 PTS: 1 DIF: L2 REF: 8-3 Trigonometry OBJ: 8-3.1 Use the sine, cosine, and tangent ratios to determine side lengths and angle measures in right triangles STA: MA.912.G.5.4| MA.912.T.2.1 TOP: 8-3 Problem 2 Using a Trigonometric Ratio to Find Distance KEY: side length using tangent | tangent | tangent ratio DOK: DOK 2 4 ID: A 22. ANS: 12.5 PTS: 1 DIF: L3 REF: 8-3 Trigonometry OBJ: 8-3.1 Use the sine, cosine, and tangent ratios to determine side lengths and angle measures in right triangles STA: MA.912.G.5.4| MA.912.T.2.1 TOP: 8-3 Problem 2 Using a Trigonometric Ratio to Find Distance KEY: cosine | side length using sine and cosine | cosine ratio DOK: DOK 2 23. ANS: 8.1 PTS: 1 DIF: L3 REF: 8-3 Trigonometry OBJ: 8-3.1 Use the sine, cosine, and tangent ratios to determine side lengths and angle measures in right triangles STA: MA.912.G.5.4| MA.912.T.2.1 TOP: 8-3 Problem 2 Using a Trigonometric Ratio to Find Distance KEY: cosine | side length using sine and cosine | cosine ratio DOK: DOK 2 24. ANS: 31.4 PTS: 1 DIF: L3 REF: 8-3 Trigonometry OBJ: 8-3.1 Use the sine, cosine, and tangent ratios to determine side lengths and angle measures in right triangles STA: MA.912.G.5.4| MA.912.T.2.1 TOP: 8-3 Problem 2 Using a Trigonometric Ratio to Find Distance KEY: sine | side length using sine and cosine | sine ratio DOK: DOK 2 25. ANS: 6.2 PTS: 1 DIF: L3 REF: 8-3 Trigonometry OBJ: 8-3.1 Use the sine, cosine, and tangent ratios to determine side lengths and angle measures in right triangles STA: MA.912.G.5.4| MA.912.T.2.1 TOP: 8-3 Problem 2 Using a Trigonometric Ratio to Find Distance KEY: sine | side length using sine and cosine | sine ratio DOK: DOK 2 26. ANS: 169.1 m PTS: 1 DIF: L3 REF: 8-3 Trigonometry OBJ: 8-3.1 Use the sine, cosine, and tangent ratios to determine side lengths and angle measures in right triangles STA: MA.912.G.5.4| MA.912.T.2.1 TOP: 8-3 Problem 2 Using a Trigonometric Ratio to Find Distance KEY: cosine | word problem | side length using sine and cosine | problem solving | cosine ratio DOK: DOK 2 5 ID: A 27. ANS: 44 PTS: 1 DIF: L3 REF: 8-3 Trigonometry OBJ: 8-3.1 Use the sine, cosine, and tangent ratios to determine side lengths and angle measures in right triangles STA: MA.912.G.5.4| MA.912.T.2.1 TOP: 8-3 Problem 3 Using Inverses KEY: inverse of cosine and sine | angle measure using sine and cosine | cosine DOK: DOK 2 28. ANS: 35 PTS: 1 DIF: L3 REF: 8-3 Trigonometry OBJ: 8-3.1 Use the sine, cosine, and tangent ratios to determine side lengths and angle measures in right triangles STA: MA.912.G.5.4| MA.912.T.2.1 TOP: 8-3 Problem 3 Using Inverses KEY: inverse of cosine and sine | angle measure using sine and cosine | sine DOK: DOK 2 29. ANS: 60 PTS: 1 DIF: L2 REF: 8-3 Trigonometry OBJ: 8-3.1 Use the sine, cosine, and tangent ratios to determine side lengths and angle measures in right triangles STA: MA.912.G.5.4| MA.912.T.2.1 TOP: 8-3 Problem 3 Using Inverses KEY: inverse of tangent | tangent | tangent ratio | angle measure using tangent DOK: DOK 2 30. ANS: 2 is the angle of elevation from the radar tower to the airplane. PTS: OBJ: STA: TOP: KEY: 31. ANS: 8.6 m 1 DIF: L2 REF: 8-4 Angles of Elevation and Depression 8-4.1 Use angles of elevation and depression to solve problems MA.912.G.5.4| MA.912.T.2.1 8-4 Problem 1 Identifying Angles of Elevation and Depression angles of elevation and depression DOK: DOK 1 PTS: OBJ: STA: KEY: 32. ANS: 7.9 ft 1 DIF: L3 REF: 8-4 Angles of Elevation and Depression 8-4.1 Use angles of elevation and depression to solve problems MA.912.G.5.4| MA.912.T.2.1 TOP: 8-4 Problem 2 Using the Angle of Elevation sine | side length using sine and cosine | sine ratio DOK: DOK 2 PTS: OBJ: STA: KEY: 1 DIF: L3 REF: 8-4 Angles of Elevation and Depression 8-4.1 Use angles of elevation and depression to solve problems MA.912.G.5.4| MA.912.T.2.1 TOP: 8-4 Problem 2 Using the Angle of Elevation cosine | side length using sine and cosine | cosine ratio DOK: DOK 2 6 ID: A 33. ANS: 9.2 cm PTS: 1 DIF: L3 REF: 8-4 Angles of Elevation and Depression OBJ: 8-4.1 Use angles of elevation and depression to solve problems STA: MA.912.G.5.4| MA.912.T.2.1 TOP: 8-4 Problem 2 Using the Angle of Elevation KEY: tangent | side length using tangent | tangent ratio DOK: DOK 2 34. ANS: 1151.8 m PTS: 1 DIF: L3 REF: 8-4 Angles of Elevation and Depression OBJ: 8-4.1 Use angles of elevation and depression to solve problems STA: MA.912.G.5.4| MA.912.T.2.1 TOP: 8-4 Problem 3 Using the Angle of Depression KEY: sine | side length using sine and cosine | sine ratio | angles of elevation and depression DOK: DOK 2 35. ANS: 10.4 yd PTS: OBJ: STA: KEY: DOK: 36. ANS: 1.4 mi 1 DIF: L3 REF: 8-4 Angles of Elevation and Depression 8-4.1 Use angles of elevation and depression to solve problems MA.912.G.5.4| MA.912.T.2.1 TOP: 8-4 Problem 3 Using the Angle of Depression tangent | side length using tangent | tangent ratio | angles of elevation and depression DOK 2 PTS: 1 DIF: L3 REF: 8-4 Angles of Elevation and Depression OBJ: 8-4.1 Use angles of elevation and depression to solve problems STA: MA.912.G.5.4| MA.912.T.2.1 TOP: 8-4 Problem 3 Using the Angle of Depression KEY: side length using sine and cosine | word problem | problem solving | sine | angles of elevation and depression | sine ratio DOK: DOK 2 37. ANS: 91 cm2 PTS: OBJ: TOP: DOK: 38. ANS: 32 3 PTS: OBJ: TOP: DOK: 1 DIF: L3 REF: 10-2 Areas of Trapezoids, Rhombuses, and Kites 10-2.1 Find the area of a trapezoid, rhombus, or kite STA: MA.912.G.2.5| MA.912.G.2.7 10-2 Problem 1 Area of a Trapezoid KEY: area | trapezoid DOK 2 ft2 1 DIF: L3 REF: 10-2 Areas of Trapezoids, Rhombuses, and Kites 10-2.1 Find the area of a trapezoid, rhombus, or kite STA: MA.912.G.2.5| MA.912.G.2.7 10-2 Problem 2 Finding Area Using a Right Triangle KEY: area | trapezoid DOK 2 7 ID: A 39. ANS: 84 ft2 PTS: OBJ: TOP: DOK: 40. ANS: 90 ft2 1 DIF: L3 REF: 10-2 Areas of Trapezoids, Rhombuses, and Kites 10-2.1 Find the area of a trapezoid, rhombus, or kite STA: MA.912.G.2.5| MA.912.G.2.7 10-2 Problem 2 Finding Area Using a Right Triangle KEY: area | trapezoid DOK 2 PTS: 1 DIF: L3 REF: 10-2 Areas of Trapezoids, Rhombuses, and Kites OBJ: 10-2.1 Find the area of a trapezoid, rhombus, or kite STA: MA.912.G.2.5| MA.912.G.2.7 TOP: 10-2 Problem 3 Finding the Area of a Kite KEY: area | kite DOK: DOK 2 41. ANS: 36.8 ft2 PTS: OBJ: TOP: DOK: 42. ANS: 50 3 1 DIF: L3 REF: 10-2 Areas of Trapezoids, Rhombuses, and Kites 10-2.1 Find the area of a trapezoid, rhombus, or kite STA: MA.912.G.2.5| MA.912.G.2.7 10-2 Problem 3 Finding the Area of a Kite KEY: area | kite DOK 2 PTS: 1 DIF: L3 REF: 10-2 Areas of Trapezoids, Rhombuses, and Kites OBJ: 10-2.1 Find the area of a trapezoid, rhombus, or kite STA: MA.912.G.2.5| MA.912.G.2.7 TOP: 10-2 Problem 4 Finding the Area of a Rhombus KEY: rhombus | diagonal | area DOK: DOK 2 43. ANS: 128 m2 PTS: OBJ: TOP: DOK: 44. ANS: 8 and 3 PTS: OBJ: STA: TOP: DOK: 1 DIF: L3 REF: 10-2 Areas of Trapezoids, Rhombuses, and Kites 10-2.1 Find the area of a trapezoid, rhombus, or kite STA: MA.912.G.2.5| MA.912.G.2.7 10-2 Problem 4 Finding the Area of a Rhombus KEY: area | rhombus DOK 2 64 9 1 DIF: L3 REF: 10-4 Perimeters and Areas of Similar Figures 10-4.1 Find the perimeters and areas of similar polygons MA.912.G.2.3| MA.912.G.2.5| MA.912.G.2.7| MA.912.G.4.4 10-4 Problem 1 Finding Ratios in Similar Figures KEY: perimeter | area | similar figures DOK 1 8 ID: A 45. ANS: 5 : 6 and 25 : 36 PTS: 1 DIF: L3 REF: 10-4 Perimeters and Areas of Similar Figures OBJ: 10-4.1 Find the perimeters and areas of similar polygons STA: MA.912.G.2.3| MA.912.G.2.5| MA.912.G.2.7| MA.912.G.4.4 TOP: 10-4 Problem 1 Finding Ratios in Similar Figures KEY: perimeter | area | similar figures DOK: DOK 1 46. ANS: 8 : 7 and 64 : 49 PTS: OBJ: STA: TOP: DOK: 47. ANS: 1 DIF: L3 REF: 10-4 Perimeters and Areas of Similar Figures 10-4.1 Find the perimeters and areas of similar polygons MA.912.G.2.3| MA.912.G.2.5| MA.912.G.2.7| MA.912.G.4.4 10-4 Problem 1 Finding Ratios in Similar Figures KEY: perimeter | area | similar figures DOK 2 3147 m 2 PTS: OBJ: STA: TOP: DOK: 48. ANS: 1 DIF: L2 REF: 10-4 Perimeters and Areas of Similar Figures 10-4.1 Find the perimeters and areas of similar polygons MA.912.G.2.3| MA.912.G.2.5| MA.912.G.2.7| MA.912.G.4.4 10-4 Problem 2 Finding Areas Using Similar Figures KEY: similar figures | area | trapezoid DOK 2 315 cm2 PTS: OBJ: STA: TOP: DOK: 49. ANS: 1 DIF: L4 REF: 10-4 Perimeters and Areas of Similar Figures 10-4.1 Find the perimeters and areas of similar polygons MA.912.G.2.3| MA.912.G.2.5| MA.912.G.2.7| MA.912.G.4.4 10-4 Problem 2 Finding Areas Using Similar Figures KEY: similar figures | area DOK 2 1217 ft 2 PTS: OBJ: STA: TOP: DOK: 1 DIF: L3 REF: 10-4 Perimeters and Areas of Similar Figures 10-4.1 Find the perimeters and areas of similar polygons MA.912.G.2.3| MA.912.G.2.5| MA.912.G.2.7| MA.912.G.4.4 10-4 Problem 2 Finding Areas Using Similar Figures KEY: similar figures | area DOK 2 9 ID: A 50. ANS: 49,000 PTS: 1 DIF: L3 REF: 10-4 Perimeters and Areas of Similar Figures OBJ: 10-4.1 Find the perimeters and areas of similar polygons STA: MA.912.G.2.3| MA.912.G.2.5| MA.912.G.2.7| MA.912.G.4.4 TOP: 10-4 Problem 3 Applying Area Ratios KEY: similar figures | area | word problem DOK: DOK 2 51. ANS: 7 : 13; 7 : 13 PTS: OBJ: STA: TOP: DOK: 1 DIF: L3 REF: 10-4 Perimeters and Areas of Similar Figures 10-4.1 Find the perimeters and areas of similar polygons MA.912.G.2.3| MA.912.G.2.5| MA.912.G.2.7| MA.912.G.4.4 10-4 Problem 4 Finding Perimeter Ratios KEY: similar figures | similarity ratio DOK 2 10