Answer
r=8 in
d=16 in
Work Step by Step
C=2$\pi$r
16$\pi$=2$\pi$r
$\frac{16\pi}{2\pi}$=$\frac{2\pi r}{2\pi}$
8=r
r=8 in
d=2r
d=2(8)
d=16 in
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