1.

Ratio of area of the incircle to the area of triangle ABC

Answer»

`(PI)/(sinA sinB sinC)`
`(pi)/("cot"(A)/(2)"cot"(B)/(2)"cot"(C)/(2))`
`(pi)/("cot"(A)/(2)"cot"(B)/(2)"cot"(C)/(2))`
`(pi)/(COSA COS B cosC)`

Answer :B


Discussion

No Comment Found