Question

answer the question along with solution​

Answer 1

Answer:

Let the base angel be x each ,

Vertex angle= 2(x+x) = 4x

Now, since the sum of all the angles if the triangle is 180°

x+x+4x= 180°

6x= 180°

x= 30°

Therefore the vertex angle = 4x= 120°

x=120/4

x= 60°

The answer is a) 60°

Step-by-step explanation:

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