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In a !ABC if r(1) = 36 , r(2) = 18 and r...

In a `!ABC` if `r_(1)` = 36 ,` r_(2) = 18` and `r_(3) = 12` , then the perimeter of the triangle , is

A

36

B

18

C

72

D

none of these

Text Solution

Verified by Experts

`r=6` and `Delta=216`
`r=(Delta)/srArr6=(216)/srArrs=36rArr2s=72`
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