Question
The area of a circle 200mm in diameter is approximately how many times greater than the area of a circle 40mm in diameter?
Answers
Ms. Sue
A = pi * r^2
A = 3.14 * 100^2
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A = 3.14 * 20^2
A = 3.14 * 100^2
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A = 3.14 * 20^2
wayne
502.4