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NNADVOKAT [17]
3 years ago
15

Will mark brainliest Please answer

Mathematics
1 answer:
Valentin [98]3 years ago
3 0

Answer:

15mi

Step-by-step explanation:

We can use the pythagorean therom to get 12^2+9^2=c^2. 144+81=c^2

c^2=225. c=15. 15mi

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