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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