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In a DeltaABC, r(1) + r(2) + r(3) -r=...

In a `DeltaABC, r_(1) + r_(2) + r_(3) -r`=

A

2R

B

R

C

4r

D

4R

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The correct Answer is:
d
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  1. In a DeltaABC, r(1) + r(2) + r(3) -r=

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  2. In a triangle ABC , let angleC=(pi)/2. If r is the in-radius and R is ...

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