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find the area of circles with radii of 1, 2, and 4 centimeters. Then predict how the area of a circle changes when the radius is doubled.

User Beberlei
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A= Pi r squared so...
3.14 x 1 squared is 3.14
3.14 x 2 squared is 12.56
3.14 x 4 squared is 50.24
and a prediction cant be wrong
User Epochengine
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