The side of the triangle is 6.3 cm, 20.8 cm less than the second side and 0.9 cm more than the third side.

The side of the triangle is 6.3 cm, 20.8 cm less than the second side and 0.9 cm more than the third side. Find the perimeter of the triangle.

To solve this problem, remember that the perimeter of a triangle is equal to the sum of the lengths of all its sides. Let’s calculate what is the first side of the triangle.

6.3 + 20.8 = 27.1 centimeters.

Let’s calculate the length of the third side.

6.3 – 0.9 = 5.4 centimeters.

Let’s calculate what the perimeter is.

P = 27.1 + 5.4 + 6.3 = 38.8 centimeters.

Answer: 38.8 centimeters.