The perimeter of the triangle is 22 cm, one of its sides is 10 cm long, and the other two are equal.

The perimeter of the triangle is 22 cm, one of its sides is 10 cm long, and the other two are equal. what is the length of each of the two sides?

It is known from the condition that the perimeter of a triangle is 22 cm. It is also known that one of its sides is 10 cm long, and the other two are equal. In order to find what the length of each of the two sides is equal to, we compose and solve a linear equation.

Let’s use the variable x cm to denote the lengths of the second and third sides.

The perimeter of the triangle is:

P = a + b + c;

Substitute the values and get:

10 + x + x = 22;

x + x = 22 – 10;

2x = 12;

x = 12: 2;

x = 6 cm the length of the other two sides.

Answer: 6 cm and 6 cm.



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