Question

what is the length of the unlabeled side? A- 5 in B- 7 in C- 16 in D- 25 in

Answer 1

Pythagorean theorem
A^2 + 144 = 169
A^2 = 25
A = 5in.

Answer 2

We know that this is a right triangle. If a^2 + b^2 = c^2 and we know b and c then we just plug it in solve

a^2 + 144 = 169

169 - 144 = 25

The square root of 25 is 5

The answer is A) 5

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