Question

Length of equal sides of an isosceles triangle is 4cm less than twice the length of third side.find length of equal sides if perimeter of the triangle is 57 cm

Answer 1

Let the third side be x. Then the equal sides are 2x-4.

As we know, Perimeter=Sum of all the sides, i.e., 57=x + (2x-4) + (2x-4)

Solve this, you will get the value of x. Then place the value of x in 2x-4. That is the required answer. (22)

Answer 2

22 metre