Question

The vertical angle of an isosceles triangle measures 70 degree . what is the measure of the other 2 angles​

Answer 1

Answer:

one angle of triangle = 70°

so, the sum of the other 2 angles = 180 - 70 = 110°

Other 2 angles are considered as x & x-20

& x + x-20 = 110

=> 2x - 20 = 110

=> 2x = 130

=> x = 130/2 = 65°

& x-20 = 65–20 = 45°

So, the other 2 angles are 65° & 45°