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Perimeter and Area of Similar Figures

Perimeter and Area of Similar Figures. Sec 5. 3-B pg. 299 - 302. Similar Figures. 5. 49 . 10. 49 . 3. 41 . 90 . 6. Z. 90 . 41 . 4. 8. A. X.

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Perimeter and Area of Similar Figures

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  1. Perimeter and Area of Similar Figures Sec 5. 3-B pg. 299 - 302

  2. Similar Figures 5 49 10 49 3 41 90 6 Z 90 41 4 8 A X Corresponding Sides – AB and XY, BC and YZ, and AC and XZ are sides that are in the same relative position. Corresponding sides are in proportion. Y B C Corresponding Angles - A and X, B and Y and C and  Z are angles that are in the same relative position. Corresponding angles are congruent.

  3. Similar Figures – Find Perimeter , so 3 6 Z A X Given the perimeter of Triangle XYZ is 12, what is the perimeter of Triangle ABC? 3PABC = (6)(12) Perimeters of similar figures are proportional Y B C PABC = 24

  4. GIVEN SIMILAR FIGURES, find area. Pentagon ABCDE is similar to Pentagon PQRST. Find the area of Pentagon ABCDE if the area of Pentagon PQRST is 20 square inches. P A 2 6 Q T = 20 in.2 * 9 B E S R = 180 in.2 Areas of similar figures are proportional to the square of the scale factor. C D 32 = 9

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