2 years ago

Please help! Will mark brainliest

Mathematics

1 answer:

kobusy [5.1K]2 years ago

7 0

Answer:

B. 15"

Step-by-step explanation:

$a^{2}+b^2=c^2\\9^2+12^2=c^2\\81+144=c^2\\225=c^2\\\sqrt{225} = 15$

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