The perimeter of an isosceles triangle is 28 cm. The unequal side is 10 cm. Find the length of each equal side.


Given :

The perimeter of an isosceles triangle $=28 cm$.

The length of unequal side $= 10 cm$.

To find :

We have to find the length of each equal side.

Solution :

Let the length of each equal side be x.

The perimeter of the triangle is the sum of all sides of the triangle.

So, Perimeter$= x+x+10$

           $28 = x+x+10$

         $28 = 2x+10$

          $2x = 28-10$

          $2x =18$

         $x = \frac{18}{2} = 9$

Therefore, the length of each equal side is 9 cm. 


Tutorialspoint
Tutorialspoint

Simply Easy Learning

Updated on: 10-Oct-2022

108 Views

Kickstart Your Career

Get certified by completing the course

Get Started
Advertisements