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If the length of the radius of a circle is doubled, how does that affect the circumference and area? Explain.
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If the length of the radius of a circle is doubled, how does that affect the circumference and area? Explain.

User Jacob Alley
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the circumference is doubled since circumference is directly proportional to radius, and the area is quadrupled since it is directly proportional to the radius squared
User Alberto Bonsanto
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