Question

Length of equal sides of an isosceles triangle is 4 cm less than twice the length of the third side. Find the length of equal sides if perimeter of the triangle is 57 cm<br />​

Answer 1

Answer:

let the 3rd side be x

X+2x-4+2x-4=57

5x-8=57

5x=65

x=13

equal sides =2x;4=26-4=22

ans=22