Other than the two square methods what are the three other estimates used to estimate the area of circle?

Other than the two square methods what are the other three methods to estimate the area of a circle. If possible please give an example to make sense out of it. Thanks

I can only think of the π x r² method. That’s where you take the radius (r) square it (multiply it by itself) and then multiple that by pi (3.14). If the radius was 2, the equation would be area=π x 2²

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One Response to “Other than the two square methods what are the three other estimates used to estimate the area of circle?”

aircaptain9 on November 25th, 2009 at 6:37 pm

I can only think of the π x r² method. That’s where you take the radius (r) square it (multiply it by itself) and then multiple that by pi (3.14). If the radius was 2, the equation would be area=π x 2²
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