What is the length of the unknown side of the right triangle? A. 21 B. 29 C. 400 D. 441

asked Jan 8, 2019 231k views

3 votes

What is the length of the unknown side of the right triangle?

A. 21
B. 29
C. 400
D. 441

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7 votes

Answer:

Explanation:

a^2 + b^2 = c^2

21^2 + 20^2 =c^2

441+400 =
√(841) = 29

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2 votes

The answer is B. 29. You use Pythagorean theorem to figure this out.
20^2 + 21^2 = 29^2

Dpetican answered Jan 12, 2019

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