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iit jee Grade: 12
        

1. If in a triangle ABC the exradii r1, r2, r3, are such that r1 = 2r2 = 3r3  then a;b;c is 

7 years ago

Answers : (1)

Badiuddin askIITians.ismu Expert
147 Points
										

Dear


we know


    r1 = Δ /(s-a)


    r2   = Δ /(s-b)


    r3    =Δ/(s-c)


so     r1 = 2r2 = 3r3


      Δ /(s-a) =2Δ /(s-b) =3Δ /(s-c)


 


     s-b =2s-2a                and     s-c = 3s-3a


     3b +c -4a=0                and  2a -b-2c=0


solve  a/5 = b/6 =c/2


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Badiuddin


 

7 years ago
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