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Colt1911 [192]
2 years ago
12

Please answer this in two minutes

Mathematics
1 answer:
NeTakaya2 years ago
8 0

Answer:

15

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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