1.

AL, BM and CN are perpendicular from angular points of a triangle ABC on the opposite sides BC, CA and AB respectively. Delta is the area of triangle ABC, (r ) and R are the inradius and circumradius. If area of Delta LMNis Delta ', then the value of (Delta')/(Delta) is

Answer»

`2 SIN A sin B sin C`
`2 COS A cos B cos C`
`sin A sin B sin C`
`cos A cos B cos C`

Answer :D


Discussion

No Comment Found

Related InterviewSolutions