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Re: Is angle BAC a right angle? (1) x = 2y (2) y = 1.5z
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29 Oct 2017, 04:11

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statement 1= Insufficient as y can be 40 which will give x as 80 or 45 which will give x as 90. We can put any value. Statement 2= Insufficient. Can get infinite values because of it.

Combining 2y+y+2y/3=180 =>y=27 =>x=54. =>Not a right angled triangle.