Answered

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What is the exact area of a circle whose diameter is 14 cm?

A.
14 straight pi cm2

B.
28 straight pi cm2

C.
49 straight pi cm2

D.
196 straight pi cm2

Sagot :

CB16
Ok so the formula for the area of a circle is pi r2 so first the radius half of 14 is 7 so 7 squared would be 49 so it would be C. and if you wanted to get the estimation you would just multiply pi to 49 I hope this helps :) 
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