# Perimeter of isosceles treugs. is 32cm, and one of its sides is 18cm. Find the other two sides.

December 28, 2020 | education

| Solving the problem.

1. Let’s denote the lateral side of an isosceles triangle by x.

2. Let’s compose and solve the equation.

x + x + 18 = 32;

2x + 18 = 32;

2x = 32 – 18;

2x = 14;

x = 14/2;

x = 7.

3. The sides of an isosceles triangle are equal in x = 7 cm.

Answer: the sides of an isosceles triangle are 7 cm each.

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