Question

the perimeter of an isosceles triangle is 48 cm and each of its equal side is 15 cm find its areafind the area of a triangular field two sides of which are 36 metre 25 metre and the perimeter is 90 ​

Answer 1

Answer:

Two equal sides = 15 cm

Let the third side be x.

Perimeter = 48 cm

=> 15 + 15 + x = 48

=> 30 + x = 48

=> x = 48 - 30

=> x = 18

Hence, the third side is 18 cm.