Question

in an isosceles triangle if the vertex angle is twice the sum of the base angles calculate the angles of the triangle​

Answer 1

The answer is twice 240

Answer 2

Step-by-step explanation:

Answer

Let each base angle be x in an isosceles △ABC

Then vertex angle be 2(x+x)=4x

Since sum of angles of a triangle is 180

o

.

Hence 4x+x+x=180

⇒6x=180

⇒x=30

∴ Angles are 30 ,30 ,120