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What is the area of the circle ?

What is the area of the circle ?-example-1

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Answer:

254,47 in^2

Explanation:

Given:

d (diameter) = 18 in

Find: A (area) - ?

First, we have to find the length of the radius (r):


r = (1)/(2) * d


r = (1)/(2) * 18 = 9 \: in

Now, we can find the area (a):


a = \pi {r}^(2) = \pi * {9}^(2) = 81\pi \: {in}^(2) ≈254.47 \: {in}^(2)

User Ssmithstone
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