imfailing47 imfailing47

17-05-2021
Mathematics

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KillowPeak KillowPeak

17-05-2021

Step-by-step explanation:

always write what you know

circumference

U = 2 x pi x r

r = d/2

U = 39.25

rearrange and solve for r

U / (2 x pi) = r

solve for diameter

2r = d

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