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If error in measuring diameter of a circle is 4%, the error in circumference of the circle would be : -

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If error in measuring diameter of a circle is 4%, the error in circumference of the circle would be : -
A. `2%`
B. `8%`
C. `4%`
D. `1%`
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Correct Answer - C
Circumferences (S) = 2`pir`
` (Delta S)/(S) xx 100 = (Delta r)/(r ) xx 100 = 4%`
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