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Incircle of DeltaABC touches the sides B...

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

A

`r"sin"(A)/(2)`

B

`2r"sin"(A)/(2)`

C

`r"cos"(A)/(2)`

D

`2r"cos"(A)/(2)`

Text Solution

Verified by Experts

The correct Answer is:
D
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