Circle Formula(Quick!!!)

2007-07-28 4:27 pm
How do you find the area and the perimeter of the circle?

回答 (1)

2007-07-28 4:33 pm
✔ 最佳答案
area of circle : π r *2(square)

primeter of circle : 2 π r

2007-07-28 08:34:42 補充:
π = 3.14......... or 22/7


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