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The circonferenza of a circle is 7pi ft. What is the area, in square feet? Express your answer in terms of pi.

Soluzione

The circumference of a circle is 7\pi ft. What is the area, in square feet? Express your answer in terms of \pi.

Soluzione

a re a : 38.48 f t^{2}

Fasi della soluzione

Given:

c i rc u m f ere n ce : 7 π f t

Raggio della circonferenaza data

C i rc u m f ere n ce = 7 π : r = 3.5

Area del cerchio dato

r = 3.5 : A = 38.48451 \dots

a re a : 38.48 f t^{2}

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