Question

plz say full method

vertex angle of an isosceles triangle is 80 degree. find its base angles ​

Answer 1

Answer:

Given vertex angle=80°

Angle sum property of triangle=180°

So base angles=100°

Answer 2

Answer:

let base angles be equal to x. so sum of base angles =2x. sum of angles of a triangle=180°. so, 2x+80°= 180°.