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If in DeltaABC, r(3)=r(2)+ r(2), then an...

If in `DeltaABC, r_(3)=r_(2)+ r_(2)`, then `angleA+angleB=`

A

`120^(@)`

B

`100^(@)`

C

`90^(@)`

D

`80^(@)`

Text Solution

Verified by Experts

The correct Answer is:
C
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