danielahchf danielahchf

14-11-2018
Mathematics

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What is the area of the circle if DF = 20 in?

What is the area of the circle if DF 20 in class=

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sqdancefan sqdancefan

14-11-2018

Answer:

100π in²

Explanation:

The formula for the area of a circle is

... A = πr²

The radius is half the diameter, so in your circle is (20 in)/2 = 10 in. Then the area is

... A = π(10 in)² = 100π in² . . . . matches the last selection

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chinese85 chinese85

14-11-2018

The answer is 100 in^2

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