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人気のある Word Problems >

The radius of a 円 is 20 in. Find its area in terms of pi.

解

T h e r a d i u s o f a c i rc l e i s 20 in . F in d i t s a re a in t er m s o f π .

解

a re a : 400 π i n^{2}

+1

十進法表記

1256.63706 \dots

解答ステップ

Given:

r a d i u s : 20 in

指定された円の面積

r = 20 : A = 400 π

a re a : 400 π i n^{2}

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