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If in a DeltaABC, r1r2+r2r3+r3r1 is equa...

If in a `DeltaABC,` `r_1r_2+r_2r_3+r_3r_1` is equal to (where `r_1,r_2,r_3` are the exradii and 2s is the perimeter)

A

`s^2`

B

`2s^2`

C

`3s^2`

D

`4s^2`

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The correct Answer is:
A
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PATHFINDER-SOLUTION OF TRIANGLE AND HEIGHT AND DISTANCE-QUESTION BANK
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  12. If lambda be the perimeter of the DeltaABC. then bcos^2(c/2)+c cos^2(B...

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  13. If the area of a triangle ABC is given by Delta=a^2-(b-c)^2then tan(A...

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  14. If in a DeltaABC, cosA+2cosB+cosC=2,then a,b,c are in

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  15. If D is the mid point of side BC of a triangle ABCand AD is perpendicu...

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  17. If a,b,c,d be the sides of a quadrilateral and g(x)=f[f{f(x)}], where ...

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