Question

The perimeter of an isosceles triangle is 100cm.If the unequal sides meaures 40cm,find each of the equal sides

Answer 1

let the equal side be X , then

x+x+40=100

2x=60

x=30cm

Answer 2

let the equal side be x
x+x + 40= 100
2x= 100-40
2x=60
x=60/2
x= 30