Question

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

Answer 1

Let the base angles be x
vertical angle=x+15
x+x+x+15= 180 ( angle sum property)
3x+15=180
3x=180-15
3x= 165
x=165/3
x=55

Therefore the angles are
55°, 55° ( base angles) and 70°( vertical angle)

hope it helps...

Answer 2

55,55,70
as the three angles are x,x,x+15(base angles of an isoceles triangle is the same)
so:
     x+x+x+15=180(sum of a triangle = 180 degree)
=> 3x = 175
=> x=55
by replacing x we get the required angles