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In a DeltaABC, if(c+a+b) (a+b-c) =ab, th...

In a `DeltaABC`, if(c+a+b) (a+b-c) =ab, then the measure of angle C is

A

`(pi)/3`

B

`(pi)/6`

C

`(2pi)/3`

D

`(pi)/2`

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OBJECTIVE RD SHARMA ENGLISH-PROPERTIES OF TRIANGLES AND CIRCLES CONNECTED WITH THEM-Chapter Test
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  9. In a DeltaA B Csum(b+c)tanA/2tan((B-C)/2)=

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