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The formula for the area of a circle is pi x r2 where r is the radius. Pi is usually approximated as 3.14. So plugging in the value of r as 3.5, you would get 3.14 x (3.5)2 which means the area of the circle is about 38.465.

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14y ago
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Q: What is the area of a circle if the radius is 3.5?
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