Question

base angle of an isosles triangle are 15 degree more than its vertical angle .TV find all the angle​

Answer 1

Answer:

Let vertical angle of the isosceles triangle = x°

∴ Each base angle = x + 15°

X + 15° + x + 15° + x° = 180°

(Sum of angles of a triangle)

⇒ 3x + 30° = 180°

⇒ 3x = 180° - 30° = 150°

∴ x = 150°/3 = 50°

Hence vertical angle = 50°

and each base angle = 50° + 15° = 65°

Answer 2

Answer:

Let the angles be x°,x°and (x+15)°

according to the problem

x+x+x+15=180

3x=165

x=55

Therefore the angles are 55°, 55° and 70°.

hope this will help you