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A boy starts running from a certain poin...

A boy starts running from a certain point P and goes round a circle of radius a and reaches Q, exactly at the other side of the point P as shown in figure. The distance covered by the boy would be

A

`pi a`

B

`2pi a`

C

2a

D

`2pi//a`

Text Solution

Verified by Experts

The correct Answer is:
A
Distance covered by the boy = Half of circumference of the circle
= `1/2xx2pi a=pi a`
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