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פּוֹפּוּלָרִי Word Problems >

The area of a circle is 100pi square feet. What is the circumference?

פתרון

T h e a re a o f a c i rc l e i s 100​ π s q u a re f ee t . Wha t i s t h e c i rc u m f ere n ce ?

פתרון

c i rc u m f ere n ce : 20 π f t

+1

עשרוני

62.83185 \dots

צעדי פתרון

Given:

a re a : 100 π f t^{2}

A re a = 100 π

רדיוס המעגל בהינתן:

r = 10

r = 10

היקף המעגל בהינתן:

C = 20 π

c i rc u m f ere n ce : 20 π f t

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