Question

In an iso scalene triangle the base angles are equal the vertex angle is 40 what are the base angles of the triangle given by the sum of the three angles of a triangle is 180 degree

Answer 1

Let the base angles are x and x

we know that the sum of three angles of triangle is 180

vertex angle=40

base angles= x , x

x+x+40=180

2x+40=180

2x=140

x=70

Hence sum of base angles of triangle=x+x or 70+70=140