Question

Two equal sides of a triangle are each 5m less than twice the third side. If the perimeter of the trianglr is 55m, find the length of its sides.

Answer 1

two equal sides are 21 metres long and the third side is 13 metres long

Answer 2

let the length of the 3rd side be a units length of equal sides= (2a-5) units
now perimeter=55
a+(2a-5)+(2a-5)=55
5a=65
a=13
so length of sides are 13m,21m and 21m