Lesson #1: Area of Circles

First we need the formula for Area of a Circle: A = ( r2, or . A = ( x. r . x. r. where A = area, ( = pi = 3.14, and r = radius = ½ of the diameter (Remember that diameter is measured all the way across the circle.) Example: If d=8, ½ d = ½ x 8 = r = 4, so A = (x4x4 = 16( = 16 x … ................
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