The perimeter of the triangle is 48 cm, and one of the sides is 18 cm. Find the other two sides

The perimeter of the triangle is 48 cm, and one of the sides is 18 cm. Find the other two sides if their difference is 4.6 cm.

From the condition it is known that the perimeter of the triangle is 48 cm, and one of the sides is 18 cm.And it is also known that the difference between the other two sides is 4.6 cm.

In order to find the lengths of the other two sides, we solve a linear equation.

Let us denote by the variable x the length of one of the sides, then the length of the second can be written as (x + 4.6).

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

P = a + b + c;

18 + x + x + 4.6 = 48;

2x = 48 – 18 – 4.6;

2x = 25.4;

x = 25.4: 2;

x = 12.7 cm second side and 12.7 + 4.6 = 17.3 cm third.