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The sum of inradius and circumradius of ...

The sum of inradius and circumradius of incircle and circumcircle of a regular polygon of side n is

A

`(a)/(4) cot ""(pi)/(2n)`

B

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

C

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

D

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

Text Solution

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The correct Answer is:
C
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