Q. 3

# Mark the Correct alternative in the following:

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

A.

B.

C.

D.

Answer :

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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