Question

In an isosceles triangle the Vertical angle is 15 degree more than that each of its base angles.
find all the angles of the triangle

Please it's urgent.

Answer 1

Hi ,

In isosceles triangle base angles are

equal.

Let the base angle = x°

Vertical angle = ( x + 15 )°

Sum of the angles in

any Triangle = 180°

Verical angle + 2 × base angle = 180°

x + 15 + 2x = 180

3x = 180 - 15

3x = 165

x = 165 / 3

x = 55°

Vertical angle = x + 15

= 55 + 15

= 70°

Therefore ,

55° , 55° and 70° are three angles

of isosceles triangle .

I hope this helps you.

:)