Question

In an isosceles triangle, the vertex angle is three times the base angle. The measure of the vertex angle is: a.36 b.72 c.108 d.Cannot be found Pls answer fast ... No irrelevant answers! They will be reported!

Answer 1

Answer: c.108

Step-by-step explanation:

The sum of all the angles of a triangle must always give 180.

108/3 = 36, so every angle of the base is 36°.

Both base angles sum 72°.

Vertex angle is 108°.

Then 72° + 108° = 180°.