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The area of a regular polygon of n sides...

The area of a regular polygon of `n` sides is (where `r` is inradius, `R` is circumradius, and `a` is side of the triangle (a) `(n R^2)/2sin((2pi)/n)` (b) `n r^2tan(pi/n)` (c) `(n a^2)/4cotpi/n` (d) `n R^2tan(pi/n)`

A

`(nR^(2))/2sin((2pi)/n)`

B

`nr^(2)tan((2pi)/(2n))`

C

`(nr^(2))/2sin((2pi)/n)`

D

`nR^(2)tan((pi)/n)`

Text Solution

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The correct Answer is:
A
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