Question

if each of the two angles of an isosceles triangle is four times the third angle, find the three angles of the triangle.

Answer 1

let equal angle=x
unequal angle=y
so
2x+y=180degree. (1)
(angle sum property of triangle)
hence according to the question,
x=4y. (given)
so x-4y=0. (2)
by solving equation 1 and 2
you will get the answer
as x = 80degree
y = 20degree
hence angels are 80degree,80degree,and 20degree
i think it will be great help for you