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Crank
3 years ago
14

#3 Find the r and the surface area

Mathematics
1 answer:
Bess [88]3 years ago
7 0

Answer:

r will be half of your diameter so 11 divided by 2 = 5.5 is your new radius.

To find surface area we use the basic formula:

4πr^2

4 x 3.14 x 30.25(radius squared, 5.5 x 5.5 = 30.25) = 379.94 ft^2 is your surface area

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