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4 years ago

I'm looking to find the exact area of a circle with a diameter of 21 inches

Mathematics

1 answer:

olasank [31]4 years ago

7 0

Answer:

A=346.46

Step-by-step explanation:

Using the formulas

A=πr2

d=2r

Solving forA

A=1

4πd2=1

4·π·212≈346.36059

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Step-by-step explanation:

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Simplified becomes;

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