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Let A be the area of an n-sided regular ...

Let A be the area of an n-sided regular convex polygon of each side a, n being a positive integer.
Radius of the circumcircle of the polygon is

A

a cosec pi/n

B

a cosec (2pi)/n

C

`a/2 cosec pi/n`

D

`a/2 cosec (2pi)/n`

Text Solution

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The correct Answer is:
C
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