The perimeter of the triangle is 23cm, its two sides are 8cm and 9cm. find the third side of the triangle?

To find the third side of the triangle.

If the problem statement says that the perimeter of this triangle is 23 cm, one side is 8 cm, and the other side is 9 cm.

We know that the perimeter is the sum of all the sides of the triangle.

So we need from (23) the perimeter of the triangle, subtract (8) one side and subtract (9) the second side.

23 – 8 – 9 = 6.

23 – 8 = 15;

15 – 9 = 6.

Answer: The third side of the triangle is 6 cm.