1.

Incircle of DeltaABC touches the sides BC, AC, and AB at D, E, and F, respectively. Then answer the following questions: The length of side EF is

Answer»

`r"sin"(A)/(2)`
`2R"sin"(A)/(2)`
`r"COS"(A)/(2)`
`2r"cos"(A)/(2)`

ANSWER :D


Discussion

No Comment Found