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BartSMP [9]
3 years ago
10

I need number 3 only please help me!!

Mathematics
1 answer:
damaskus [11]3 years ago
3 0

The answer is 9 times. This is because if the radius of A is r, and the radius of B is 3r, the radii will be squared while finding the formula. So, r will become r squared, while 3r will become 9r squared.

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