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人気のある Word Problems >

The 円周 of a circle is 10pi in. What is the area, in square inches? Express your answer in terms of pipi.

解

T h e c i rc u m f ere n ce o f a c i rc l e i s 10 π in . Wha t i s t h e a re a, in s q u a re in c h es ? E x p ress yo u r an s w er in t er m s o f p iπ .

解

a re a : 25 π i n^{2}

+1

十進法表記

78.53981 \dots

解答ステップ

Given:

c i rc u m f ere n ce : 10 π in

指定された円の半径

C i rc u m f ere n ce = 10 π : r = 5

指定された円の面積

r = 5 : A = 25 π

a re a : 25 π i n^{2}

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