Question

can anyone give the answer fast

Answer 1

Let both the base angles be x.

So, sum of the base angles is 2x.

So, the vertex angle is 4x.

According to the question,

4x+2x=180°(sum of the angles of a triangle is 180°)

=>6x= 180

=>x=180/6

=>x=30°

So, 4x= 120°

Your answer is 120° (b)

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Answer 2

Answer:

120 °b............ .... . .