Question

Find the third side of a triangle who’s other two sides are 19 cm and 31 cm and perimeter is 60 cm.

Answer 1

Answer:

Step-by-step explanation:

Let the unknown side be 'x'

The given two sides are : 19 cm and 31 cm

Perimeter = sum of all sides

Therefore,

               60 = 19 + 31 + x

                60 = 50 + x

               50 + x = 60

                x = 60 - 50

                x = 10

Hence, the third side is 10 cm.

Answer 2

So, answer is X=10