From Fig., the value of x is(a) 75° (b) 90° (c) 120° (d) 60° – InterviewSolution

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1.

From Fig., the value of x is(a) 75° (b) 90° (c) 120° (d) 60°

Answer»

(c) 120^o

We know that, exterior angle is equal to sum of opposite interior angle.

From the figure,

∠ACD = ∠A + ∠B

∠ACD = 25^o + 35^o

= 60°

Then, in another triangle

x is exterior angle

∴ x = 60° + ∠ACD

x = 60° + 60°

x = 120°

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