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Chapter 13

Problem 241

Find the mean proportional between 4 and 16 .

Problem 243

Given the A.A.A. (Angle, Angle, Angle) Similarity Theorem, prove the A.A. (Angle, Angle) Similarity Theorem.

Problem 257

Prove that any two regular polygons with the same number of sides are similar.

Problem 259

The lengths of two corresponding sides of two similar polygons are 4 and 7 . If the perimeter of the smaller polygon is 20 , find the perimeter of the larger polygon.

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