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The circumference of a circle is 21pi cm. What is the area, in square centimeters? Express your answer in terms of

Solution

The circumference of a circle is 21\pi cm. What is the area, in square centimeters? Express your answer in terms of

Solution

a re a : 346.36 c m^{2}

Solution steps

Given:

c i rc u m f ere n ce : 21 π c m

Radius given

C i rc u m f ere n ce = 21 π : r = 10.5

Circle Area given

r = 10.5 : A = 346.36059 \dots

a re a : 346.36 c m^{2}

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