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Mathematics

Grade9

Easy

Question

Find the area of a circle with a circumference of 12.56 units.

12.56
24.34
13.26
15.64

hint Hint:

$A equals pi r to the power of 2 end exponent$
Circumference = 2× $pi$ ×r

The correct answer is: 12.56

$C i r c u m f e r e n c e o f t h e c i r c l e equals 2 cross times pi cross times r$ = 12.56
Radius = $fraction numerator 12.56 over denominator 2 cross times 3.14 end fraction$ = $fraction numerator 12.56 over denominator 6.28 end fraction$ =
Area of circle= $pi r to the power of 2 end exponent$ = 3.14×2×2 = 12.56.

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