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The answer is C,can anyone explain how?
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The answer is C,can anyone explain how?

The answer is C,can anyone explain how?-example-1
User Charis
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See that there is 40 small divisions in 1 division of the micrometer(which is equal to 0.1mm or 100 micrometer)

So 40 small divisions = 100 micrometer
radius = 50 small divisions = 125 micrometer
So the area is given by C.

Hope it helps!
User Wrek
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