The two sides of the triangle are equal to each other and are 14.2 cm less than

The two sides of the triangle are equal to each other and are 14.2 cm less than the third side and its perimeter is 76 cm. Find the sides of the triangle.

Let the first and second sides of the triangle be equal to each other and make up x cm each.

The third side is 14.2 cm larger, that is, equal to:

(x + 14.2) cm.

The perimeter of a triangle is the sum of the lengths of all sides and equals 76 cm.

Let’s compose and solve the equation:

x + x + x + 14.2 = 76,

3x = 61.8,

x = 20.6 cm,

x + 14.2 = 20.6 + 14.2 = 34.8 cm.

Answer: The first and second sides of the triangle are 20.6 cm long and the third 34.8 cm.