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Kipish [7]
4 years ago
9

Please help me is for my geometry

Mathematics
1 answer:
vekshin14 years ago
4 0
The formula for surface area is SA=4pi(radius)^2
This means that 4SA=4pi(2r)^2
because 2^2=4 
so multiply the first ball's surface area by 4 
the answer is c
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