Question

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

15
20
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Answer:
attempt 1 out of 2
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Answer 1

It's 13.2

Explanation:

From pythogras theorem:

`{ \bf{ {a}^(2) = {b}^(2) + {c}^(2) }}`

`= \sqrt{ {20}^(2) - {15}^(2) } \\ = √(175) \\ = 13.2`