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Question

If a rope of length 15π m is bent to form a circle, then what is the radius of the circle formed?

A
7.5 m
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B
15 m
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C
15π m
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D
30 m
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Solution

The correct option is A 7.5 m
The length of the rope will be equal to the circumference of the circle.

Circumference of circle = Length of rope =2πr

<!--td {border: 1px solid #ccc;}br {mso-data-placement:same-cell;}--> 15π=2×π×r

Radius = r = 7.5 m

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