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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
Please feel free to post as many doubts on our discussion forum as you can. If you find any question Difficult to understand - post it here and we will get you the answer and detailed solution very quickly. We are all IITians and here to help you in your IIT JEE  & AIEEE preparation. All the best. Regards,Askiitians ExpertsBadiuddin

```
7 years ago
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