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If(1 - r1/r2)(1 - r1/r3) = 2, then the Δ is

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in Trigonometry by (53.3k points)

If(1 - r1/r2)(1 - r1/r3) = 2, then the Δ is

(A)  equilateral 

(B)  isosceles 

(C)  right-angled 

(D)  None of these 

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1 Answer

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Best answer

Correct option  (C) right-angled

r1 = Δ/(s - a)

Now,

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