Question

In an isosceles triangle the vertex angle is twice either base angle . Finds its all angle

Answer 1

Answer:

Let the two base angles be x and x.

And vertex angle be 2x. (given in question)

Therefore:

x + x + 2x = 180. ( By angle sum property of triangle)

4x = 180

x = 180÷4

x = 45

NOW...

Base angles x and x = 45 answer....

Vertex angles 2x = 2×45

=90 answer....