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Popular Word Problems >

The circumference of a circle is 14pi in. What is the area, in square inches? Express your answer in terms of pipi.

Solution

T h e c i rc u m f ere n ce o f a c i rc l e i s 14 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 .

Solution

a re a : 49 π i n^{2}

+1

Decimal

153.93804 \dots

Solution steps

Given:

c i rc u m f ere n ce : 14 π in

Radius given

C i rc u m f ere n ce = 14 π : r = 7

Circle Area given

r = 7 : A = 49 π

a re a : 49 π i n^{2}

Popular Examples

Two times the sum of a number and 5 is equal to 7 Eleven times the difference of three times a number and 4 is more than-11 The product of a number and 5 is 25.8 more than 7 times a number Rachel deposited 10 in an account earning 5% interest compounded annually.To the nearest cent, how much interest will she earn in 3 years?