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STAAR GEOMETRY REVIEW Reporting Category 2 Name: ____________________________________________________ (G.4) Geometric structure: The student uses a variety of representations to describe geometric relationships and solve problems. Date: ____________________________________________________ Period: ____________________________________________________ Topic: (G.4)(A) - Select an appropriate representation ([concrete,] pictorial, graphical, verbal, or symbolic) in order to solve problems. (Supporting Standard) Academic Language Notes Concrete Representation Pictorial Representation Graphical Representation Verbal Representation Symbolic Representation Geometric Patterns 1 STAAR GEOMETRY REVIEW (G.4)(A) 1. Reporting Category 2 Select an appropriate representation ([concrete,] pictorial, graphical, verbal, or symbolic) in order to solve problems. (Supporting Standard) 2. Which of the following does not necessarily represent line l parallel to line m and intersected by line t? A circular pizza is cut into 12 equal pieces. The tip of each piece forms what angle? F. 20º G. 25o A. H. 30o J. 35o 3. B. Look at the figure shown below. C. Which expression does not represent the area of the figure? A. bc − ef D. B. af + ad − de C. de + af + ad D. af + cd 2 STAAR GEOMETRY REVIEW 4. Reporting Category 2 6. If angle A and angle B are supplementary angles and the measure of angle A is x, which equation can be used to find y, the measure of angle B? Find the equation that can be used to determine the total area of the composite figure shown below. F. y = 90 + x G. y = 90 – x H. y = 180 – x 1 2 J. y = x + 180 A. A lw w 2 B. A lw w 2 C. A w 2l w 2 1 2 D. w 2l w 2 5. 7. A regular hexagon is broken into the 6 triangles as shown below. What are the measurements of the interior angles of ABC ? C A New York Time 12:00 NOON California Time 9:00 A.M. Eastern time Pacific Time At which of the following times of day will the hour and minute hands of a clock in New York form an angle that is complementary to the angle formed by the hands of a clock in California. B A. 30o, 60o, 90o F. 1:00 P.M. B. 40o, 60o, 90o G. 3:00 P.M. C. 60o, 60o, 60o H. 8:00 P.M. D. 30o, 60o, 60o J. 10:00 P.M. 3 STAAR GEOMETRY REVIEW 8. Reporting Category 2 10. In the figure shown below, BC is parallel to Look at the cube shown below. ED , and AE is perpendicular to ED . The measure of ABC is 130°. s Which equation best represents the area of the shaded rectangle located diagonally in the cube? A. s 2 3 B. 9. s3 2 C. s 3 D. s 2 What is the measure of angle BAE in degrees? Record your answer and fill in the bubbles on 2 grid. 2 Dolores had a circular garden with a radius of 30 feet. She used all of the fencing from the circular garden to enclose a square garden. The length of each side of Dolores’s square garden was approximately: F. 47 feet G. 94 feet H. 120 feet J. 188 feet 4 STAAR GEOMETRY REVIEW Reporting Category 2 Name: ____________________________________________________ (G.5) Geometric pattern: The student uses a variety of representations to describe geometric relationships and solve problems Date: ____________________________________________________ Period: ____________________________________________________ Topic: (G.5)(A) - Use numeric and geometric patterns to develop algebraic expressions representing geometric properties. (READINESS STANDARD) Academic Language Notes Patterns Numeric Patterns Geometric Patterns Algebraic Expressions Geometric Properties 5 STAAR GEOMETRY REVIEW Use numeric and geometric patterns to develop algebraic expressions representing geometric properties. (READINESS STANDARD) (G.5)(A) 1. Reporting Category 2 The figure at the right shows a conical cup containing water. The water depth can be represented by x, and the area of the water surface can be represented by A. As the water depth changes, the area of the water surface changes, as shown in the table below. Which equation best represents the relationship between the area of the water surface and the water depth? A. A 2 x 12 16 B. A C. A D. A 2. x 2 x 2 16 x 16 in 2 in 2 in 2 in 2 The figure shows the first 3 stages of a fractal. Which expression describes the number of shaded squares in the nth figure of the pattern? F. 3n 1 G. 3 n 1 H. 3 n 1 J. Not here 6 STAAR GEOMETRY REVIEW 3. Reporting Category 2 Use the table to determine the expression that best represents the number of diagonals of any convex polygon having n sides. Polygon Number of Sides Number of Diagonals Triangle Quadrilateral Pentagon Hexagon Heptagon Octagon 3 4 5 6 7 8 0 2 5 9 14 20 5. Ms. Morales asked her students to write an equation to represent the number of white tiles, t, for any figure number, n. Which equation represents the number of white tiles in the pattern? A. t=n+2 A. n 3 B. t=n+4 n3 2 C. t = 4n + 4 B. D. t = 4n + 8 C. nn 3 2 D. nn 3 4. The figure below shows the first 3 stages of a fractal. 6. The first 4 stages of a geometric pattern are shown below. How many circles will the nth stage of this fractal contain? If each square represents 1 square unit, which expression can be used to determine the number of square units at stage n? F. 2n F. n 12 3 G. 2 n G. 2n 1 H. 2n 1 H. J. 2 1 n n n 1 2 J. 3n 1 = 7 STAAR GEOMETRY REVIEW 7. 8. Reporting Category 2 A nesting of squares is created by starting with a square, then inscribing a square rotated by 45o within, and then repeating the process as shown in the figure for 3 squares. If n squares are so nested, into how many regions is the original square divided? A. 4n - 4 B. 4n - 3 C. 4n D. 4n + 1 A townhouse builder used arrangements of toothpicks to describe his latest plan to a coworker. The diagram below show the toothpick arrangement he used for 1 and 2 townhouses. Which expression can be used to determine the number of toothpicks the builder will need to represent y connected houses? F. 6y G. 6y-1 H. 5y J. 5y+1 9. Cristian uses tiles to create a rectangle with an area of 32 square inches. Let n represent the number of rectangles in the pattern. Which expression can be used to find the area of a pattern with n rectangles? A. 32n B. n + 46 C. 9n + 23 D. 4(9n) – 2 8 STAAR GEOMETRY REVIEW Reporting Category 2 Name: ____________________________________________________ (G.5) Geometric pattern: The student uses a variety of representations to describe geometric relationships and solve problems Date: ____________________________________________________ Period: ____________________________________________________ Topic: (G.5)(B) - Use numeric and geometric patterns to make generalizations about geometric properties, including properties of polygons, ratios in similar figures and solids, and angle relationships in polygons and circles. (Supporting Standard) Academic Language Notes Numeric Patterns Geometric Patterns Geometric Properties Polygons Ratio Solids Angle Relationships 9 STAAR GEOMETRY REVIEW (G.5)(B) 1. Reporting Category 2 Use numeric and geometric patterns to make generalizations about geometric properties, including properties of polygons, ratios in similar figures and solids, and angle relationships in polygons and circles. (Supporting Standard) Which expression shows the number of vertices in a pyramid whose base is an n-sided polygon? 3. Which of the following measures could not be the 3 sides of a triangle? A. 21, 28, and 35 A. n B. 8, 9, and 17 B. n + 1 C. 2.5, 3, and 5 C. 2n D. 2, 3.5, 4 D. 2n + 1 2. If a circle were divided into 4, 6, or 9 equal sectors, which of the following shows their respective measures of the central angles of the sectors? 4. Jose made a fence around his garden. Each vertex had an exterior angle measurement of 40o. The fence formed a regular polygon. Which is the shape of the fence? F. 90°, 60°, 40° F. Hexagon G. 45°, 30°, 20° G. Heptagon H. 90°, 60°, 45° H. Octagon J. 180°, 90°, 60° J. Nonagon 10 STAAR GEOMETRY REVIEW 5. Reporting Category 2 ∆JKE is an obtuse isosceles triangle with m E = 10o and KE>JK. What is m J? 7. A. 170o B. 160o C. 85o Felicia notices that in an equilateral triangle, each interior angle measures 60o and in a square, each interior angle measures 90o. Which of the following expressions could be used to determine the measure of each interior angle of a regular polygon with n sides? A. (n 2) *180 D. 10o B. (n 2) *180 n C. (n 2) * 360 D. 6. Shown below is ABC . What is the sum of the ABC and BCA ? 8. 125o (n 2) * 360 n A square is attached to one side of a regular hexagon and matches up exactly. The square has a side length of 4 centimeters. Find the perimeter of the new composite polygon and classify the new polygon. F. 32 centimeters; octagon G. 32 centimeters; nonagon H. 40 centimeters; decagon F. 65o J. 40 centimeters; nonagon G. 75o H. 90o J. 125o 11 STAAR GEOMETRY REVIEW 9. Reporting Category 2 On the map below, First Avenue and Second Avenue are parallel. A city planner proposes to locate a small garden and park on the triangular island by the intersections of four streets shown. A. 90°, 65°, 25° B. 90°, 50°, 40° C. 90°, 60°, 30° D. 130°, 40°, 10° 10. A portion of a regular polygon is shown. How many sides does the polygon have? F. 15 sides G. 16 sides H. 18 sides J. 20 sides 11. What is the measure of each interior angle in a regular dodecagon? Record your answer and fill in the bubbles on your answer document. 12 STAAR GEOMETRY REVIEW Reporting Category 2 Name: ____________________________________________________ (G.5) Geometric pattern: The student uses a variety of representations to describe geometric relationships and solve problems Date: ____________________________________________________ Period: ____________________________________________________ Topic: (G.5)(C) - Use properties of transformations and their compositions to make connections between mathematics and the real world, such as tessellations. (Supporting Standard) Academic Language Notes Transformations Translations Rotations Reflections Dilations Tessellations 13 STAAR GEOMETRY REVIEW (G.5)(C) 1. Reporting Category 2 Use properties of transformations and their compositions to make connections between mathematics and the real world, such as tessellations. (Supporting Standard) The first 4 stages of a certain fractal are shown below. In each stage after the first, each square is divided into 4 squares, and then the bottom right square is removed. If the pattern continues, how many shaded square units will Stage 5 contain? A. 243 B. 54 C. 81 D. 27 2. Which sentence better describes a tessellation? 3. F. A tiling where a shape is repeated through a plane without any gaps or overlaps. Which of the polygons listed below can be used to create a tessellation by itself? A. Regular Octagon B. Regular Nonagon C. Regular Decagon G. A tiling created exclusively by triangles and trapezoids. D. None of the above. H. A pattern showing the translation of a square. J. None of the above. 14 STAAR GEOMETRY REVIEW 4. Which shape was used to create the following tessellation? Reporting Category 2 5. Look at the figure below Which of these patterns can be made using only translations, rotations, or a combination of translations and rotations? I. F. II. G. III. H. A. I and II only B. I and III only J. C. II and III only D. I, II and III 6. ∆A’B’C’ is the image if ∆ABC under what type of transformation? F. reflection G. rotation H. translation J. dilation 15 STAAR GEOMETRY REVIEW 7. Which shape could not be use alone to from a tessellation? A. 8. Reporting Category 2 B. C. D. The figure graphed below is rotated 90o clockwise about the origin and translated up 1 unit. Which is the resulting image? F. G. H. J. 16 STAAR GEOMETRY REVIEW Reporting Category 2 Name: ____________________________________________________ (G.5) Geometric pattern: The student uses a variety of representations to describe geometric relationships and solve problems Date: ____________________________________________________ Period: ____________________________________________________ Topic: (G.5)(D) - Identify and apply patterns from right triangles to solve meaningful problems, including special right triangles (45 o-45 o-90 o and 30 o-6 0 o-90 o) and triangles whose sides are Pythagorean triples. (READINESS STANDARD) Academic Language Notes Right Triangles Special Right Triangles 45o-45o-90o Triangle 30o-60o-90o Triangle Pythagorean Theorem Pythagorean Triple 17 STAAR GEOMETRY REVIEW (G.5)(D) 1. Reporting Category 2 Identify and apply patterns from right triangles to solve meaningful problems, including special right triangles (45o-45 o-90 o and 30 o-60 o-90 o) and triangles whose sides are Pythagorean triples. (READINESS STANDARD) ΔKMS has a right angle at M. The measure of MSK = 60°, and KS = 17 centimeters. Which is closest to the length of KM? 3. What are the values of x and y in the figure below? A. 9 cm B. 12 cm C. 10 cm D. 15 cm A. x = 12, y = 6 2 B. x = 12, y = 6 3 C. x = 6 2 , y = 6 D. x = 6 3 , y = 12 2. Megan is using an equilateral triangle as part of a design on a sweatshirt. Each side of the triangle is 12 inches long. Megan is sewing a line of sequins from the midpoint of one side of this triangle to the opposite vertex. Approximately how long will the line of sequins be? 4. A fence around a square garden has a perimeter of 48 feet. Find the approximate length of the diagonal of this square garden. F. 12 feet G. 17 feet H. 21 feet J. 24 feet F. 13.4 in. G. 10.4 in. H. 8.5 in. J. 5.2 in. 18 STAAR GEOMETRY REVIEW 5. Reporting Category 2 Mr. Ryan is flying his single-engine plane at an altitude of 2400 feet. He sees a cornfield at an angle of depression of 30°.What is Mr. Ryan’s approximate horizontal distance from the cornfield at this point? A. 1200 feet B. 3394 feet C. 4157 feet D. 4800 feet 6. A kite string is 220 feet long from the kite to the ground. The string makes a 45° angle with the ground. About how high off the ground is kite? F. 110 ft G. 127 ft H. 156 ft J. 311 ft 7. Mr. Schultz has a garden shaped like an equilateral triangle that measures 11 feet on each side. He has placed a watering hose that extends from the faucet located at a vertex to the opposite side, as shown below. Which is closest to the length of the hose in the garden? A. 7.8 ft B. 9.5 ft C. 6.4 ft D. 5.5 ft 19 STAAR GEOMETRY REVIEW 8. In the figure shown below, MN = 10 centimeters. Reporting Category 2 9. The lengths of the bases of an isosceles trapezoid are shown below. 14 units 8 units If the perimeter of this trapezoid is 32 units, what is its area? A. 44 square units B. 110 square units C. 88 square units D. 55 square units Which is closest to the length of TN ? F. 7 cm G. 6 cm H. 17 cm J. 14 cm 10. In ∆XYZ, what is approximate the length of XY . Round your answer to the nearest hundredth of an inch. Record your answer and fill in the bubbles on grid 20