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Elena-2011 [213]
3 years ago
8

What is the missing side length in this right triangle? A. 15 B. 21 C. 225 D. 441

Mathematics
1 answer:
koban [17]3 years ago
3 0

Answer:

A. 15.

Step-by-step explanation:

9^2 + 12^2

= 81 + 144

= 225.

Taking the square root: we get 15.

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