The diameter of a circle is 7 in. Find its area to the nearest tenth.

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02-09-2020
Mathematics

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The diameter of a circle is 7 in. Find its area to the nearest tenth.

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What it is the answer to this problem

Аноним Аноним · Answer 1 · 2020-09-03T00:04:15+02:00

Аноним Аноним

03-09-2020

A = πr^2
D = r • 2
R = D/2
7/2 = 3.5
R = 3.5

A = πr^2
A = 3.14 • 3.5^2
A = 3.14 • 12.25
A = 38.465
A = 38.47

So therefore the area of the circle is 38.47!

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