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Popolare Word Problems >

The circonferenza of a circle is 18pi in. What is the area, in square inches? Express your answer in terms of pipi.

Soluzione

T h e c i rc u m f ere n ce o f a c i rc l e i s 18 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 .

Soluzione

a re a : 81 π i n^{2}

+1

Decimale

254.46900 \dots

Fasi della soluzione

Given:

c i rc u m f ere n ce : 18 π in

Raggio della circonferenaza data

C i rc u m f ere n ce = 18 π : r = 9

Area del cerchio dato

r = 9 : A = 81 π

a re a : 81 π i n^{2}

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