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Download Name: TP: ______ CRS PPF402: Exhibit knowledge of basic angle
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Name: _________________________________________ TP: _______ CRS Objective CW#19: Find Interior/Exterior Angles Geometry PPF402: Exhibit knowledge of basic angle properties and special sums of angle measure. PPF501: Use several angle properties to find an unknown angle measure. 3.7: Find the measure of the missing interior angle of a triangle. 3.8: Use exterior angle of a triangle to find missing interior angle. 3.9: Find the measure of the missing interior angle of a quadrilateral. 3.10: Find the measure of the missing interior angle of a circle. Watch the Kahn Academy video: Sum of Interior Angles of a Polygon (until 3:46) http://www.khanacademy.org/video/sum-of-interior-angles-of-a-polygon?playlist=Geometry Directions: Pay close attention to the video so that you can answer the questions below! 1) How many non-overlapping triangles can be draw 2) If the sum of the interior angles of a triangle are into the hexagon (6-sided figure)? _____ degrees and there are ____ non-overlapping triangles in a hexagon, then how could we find the sum of the interior angles of the hexagon? 3) How many non-overlapping triangles can be draw into the heptagon (7-sided figure)? 4) If the sum of the interior angles of a triangle are _____ degrees and there are ____ non-overlapping triangles in a heptagon, then how could we find the sum of the interior angles of the heptagon? 5) How many non-overlapping triangles can be draw into the octagon (8-sided figure)? 6) If the sum of the interior angles of a triangle are _____ degrees and there are ____ non-overlapping triangles in a octagon, then how could we find the sum of the interior angles of the octagon? 7) Find a pattern between 1) the number of sides of a polygon, 2) the number of non-overlapping triangles created within each polygon and 3) the sum of the interior angles of a polygon. PUSH IT TO THE LIMIT. The sum of the interior angles of a triangle is ______ degrees. Example 1: Find the measure of the angle indicated. 1) Find the measure of the angle indicated. Example 2: Solve for x: 2) Solve for x: Example 3: Find the measure of angle A: 3) Find the measure of angle A: Craziness! Find the measure of the angle indicated! So much fun! Don’t forget your angle pair relationships! Supplementary Angles: ____________________________________ Complementary Angles: ___________________________________ Vertical Angles: __________________________________________ Example 4: Solve for x: 4) Solve for x: PUSH IT TO THE LIMIT. Example 5: Find the measure of angle A: 5) Find the measure of angle A: 6) 7) 8) 9) 10 11) PUSH IT TO THE LIMIT. Interior Angles of a Quadrilateral How many non-overlapping triangles are inside this quadrilateral? _____ What is the sum of the interior angles of a quadrilateral? ______________________ Example 6: Find x. 12) Find x. 13) Find x. 14) Find the measure of the given angle: 15) Find the measure of the given angle: 16) Find the measure of the given angle: PUSH IT TO THE LIMIT. Exit Slip. 1) Find the measure of angle W. 2) Find the measure of the given angle: A. 33 B. 73 C. 107 D. 147 Exit Slip w/Answers. 1) Find the measure of angle W. A. 2) Find the measure of the given angle: 33 B. 73 C. 107 D. 147 PUSH IT TO THE LIMIT.