Question

The base of an isosceles triangle is cm. The perimeter of the triangle is cm. What is the length of either of the remaining equal sides?

Answer 1

Let the length of equal sides be x cm.

Perimeter = x cm + x cm + Base = cm

On transposing to R.H.S, we obtain

On dividing both sides by 2, we obtain

Therefore, the length of equal sides is cm.