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شائع Word Problems >

The circumference of a circle is 20pi in. What is the area, in square inches? Express your answer in terms of

الحلّ

T h e c i rc u m f ere n ce o f a c i rc l e i s 20 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

الحلّ

a re a : 100 π i n^{2}

+1

عشري

314.15926 \dots

خطوات الحلّ

Given:

c i rc u m f ere n ce : 20 π in

Radius given

C i rc u m f ere n ce = 20 π : r = 10

Circle Area given

r = 10 : A = 100 π

a re a : 100 π i n^{2}

أمثلة شائعة

4 less than a number.What is the radius of a circle with a diameter of 4 15 is 40 percent of what number The sum of three consecutive even integers is-108 The population of a city increases by 5% per year. If this year's population is 168,000, what will next year's population be, to the nearest individual?