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3 years ago

Please answer this in two minutes

Mathematics

1 answer:

NeTakaya3 years ago

8 0

Answer:

Step-by-step explanation:

Use the Pythagorean Thereom:

$r^{2}$ = $9^{2}$ + $12^{2}$

$r^{2}$ = 81+144

$r^{2}$ = 225

$r$ = 15

Please mark me as Brainliest!

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