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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.
The radius of the circle that can be inscribed in the polygon is

A

`a/2 cot(pi/n)`

B

`a/2 tan(pi/n)`

C

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

D

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

Text Solution

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The correct Answer is:
A
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