Question

The Perimeter of an isosceles triangle is 131/20cm. If one of its equal sides is 7/5cm,find the third side.​

Answer 1

Answer:

Let the third side be X

now, 7/5 +7/5 + X = 131/20

14/5 + X = 131/20

X = 131/20 - 14/5

X = 131-56/5

X = 75/5 = 15 cm