Q3 of 87 Page 10

Mark the Correct alternative in the following:

In the sides of triangle are in the ratio then the measure of its greatest angle is



By Cosine law,






A=30°


Putting Cosine law for B,






B=60°


Putting Cosine law for C,






C=90°


So, The largest Angle is ∠C i.e. 90° or .


Option C

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