Question

Two sides of triange are 12 cm and 14 cm and the perimeter of the triangle is 36cm. What is the third side

Answer 1

Let the length of third side be x cm. 

Length of other two side are 12 cm and 14 cm. 

Now, Perimeter of triangle = 36 cm 

⇒ 12 + 14 + x = 36 

⇒ 26 + x = 36 

⇒ x = 36 - 26 

⇒ x = 10 cm 

Thus, the length of third side is 10 cm.