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Mathematics 6 Online
OpenStudy (anonymous):

Calculate the area of a circle with a radius of 2 inches and a circle with a radius of 4 inches. Leave your answers in terms of pi. When the radius doubles does the area of the circle double?

jhonyy9 (jhonyy9):

@blueglass ATTENTION ,, 2pir " is formula for perimeter of a circle formula for area of a circle is ,, pir^2 "

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