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受欢迎的 Word Problems >

Find the area of a circle with a 半径 of 21 inches.

解答

F in d t h e a re a o f a c i rc l e w i t h a r a d i u s o f 21 in c h es .

解答

a re a : 441 π in c h^{2}

+1

十进制

1385.44236 \dots

求解步骤

Given:

r a d i u s : 21 in c h

给定

r = 21

的圆面积:

A = 441 π

a re a : 441 π in c h^{2}

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