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  • 10-05-2021
  • Mathematics
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#3 Find the r and the surface area

3 Find the r and the surface area class=

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Аноним Аноним
  • 10-05-2021

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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