Question

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Answer 1

`50.24 \: \: {yd}^(2)`

Explanation:

`d = 2r \\ 8 = 2r \\ (8)/(2) = (2r)/(2) \\ r = 4`

`area = \pi {r}^(2) \\ = 3.14 * 4 * 4 \\ = 50.24 \: \: \: {yards}^(2)`

hope this helps you.

Answer 2

`P=\pi r^(2)`

P-Area

r=8/2=4

`P=\pi *4^(2) =\pi *16=3.14*16=50.24`