Question

in an isosceles triangle the base angle is twice as large as vertex angle find the angles of the triangle​

Answer 1

Answer:

since in isosceles triangle 2 angles are equal let them be x and it is given that vectex angle is 2x

therefore x+x+2x =180 (sum of angles of a triangle is 180)

4x=180

x=45

and vertex angle =2x=90

Answer 2

Answer:

vertex angle=x

Base angles = 2x each

Total angles = 2x + 2x + x = 180

5x=180

x = 36degree

vertex angle = 36

Base angles=2x=72 degrees each