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Find the length of the third side. If necessary, round to the nearest tenth.

13
20
help please !

Find the length of the third side. If necessary, round to the nearest tenth. 13 20 help-example-1
User Riversun
by
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1 Answer

3 votes

Answer: D, 15.2

Explanation:

use formula a^2 + b^2 = c^2

a^2 + 13^2 = 20^2

a^2 + 169 = 400

- 169 -169

a^2 = 231

sqrt sqrt

a = sqrt(231)

a = 15.198 = 15.2

User Myk Melez
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5.0k points