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Properties of Similar Polygons. Lesson #4 Pg. 131. Vocabulary. Similar Polygons Polygons that have the same shape Scale Factor The ratio of the lengths of two corresponding sides of two similar polygons Math Symbols Congruent Similar ~. What you will learn…. Similar Polygons
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Properties of Similar Polygons Lesson #4 Pg. 131
Vocabulary • Similar Polygons • Polygons that have the same shape • Scale Factor • The ratio of the lengths of two corresponding sides of two similar polygons • Math Symbols • Congruent • Similar • ~
What you will learn… • Similar Polygons • Finding missing measures • http://www.youtube.com/watch?v=9IUI3jtSEWU
Real World Link • Are the prints in proportion? • Are the side lengths in proportion? • What do you notice about the angles?
Similar Polygons • If two polygons are similar, then… • There corresponding angles are congruent • The measures of their corresponding sides are in proportion • Symbols Y B X Z C A
Examples • Determine whether rectangle HJKL is similar to rectangle MNPQ. Explain. 6 N P 3 J K 7 10 10 7 H L 3 M Q 6
Examples • Quadrilateral WXYZ is similar to quadrilateral ABCD • Describe the transformations. • Find the missing measure. W 24 X A B 13 m 12 D Z 10 C 15 Y
Homework HC: pg. 135-136 (1-11)CC: pg. 135-136 (1-5, 7, 9-11)www.ixl.com H8