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April 13th, 2015, 03:01 AM   #1
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Question Area of Circles

Can someone explain why 兀 x r x r can calculate the area of a circle? Thank you!
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April 13th, 2015, 03:39 AM   #2
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Link to a simple, intuitive explanation ...

Complete Explanation for Area of a Circle Formula | Pythagorean Math
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