Circle Formula(Quick!!!)

🎓 學業台小學及中學教育

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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