## Geometry: Common Core (15th Edition)

Published by Prentice Hall

# Chapter 4 - Congruent Triangles - 4-6 Congruence in Right Triangles - Lesson Check - Page 261: 5

13 cm

#### Work Step by Step

Since $a^2+b^2=c^2$, where a, b and c must all be greater than 0, we know that the hypotenuse must be the longest side of the triangle. Thus, the 13 cm side is the longest side.

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