The perimeter of an isosceles triangle is 14 cm, the lateral side is 3 times the size of the base. Find the sides of the triangle.

It is known from the condition that the perimeter of an isosceles triangle is 14 cm. It is also known that the lateral side is 3 times larger than the base.

To do this, we will compose and solve a linear equation.

Let’s use the variable x cm to denote the base of an isosceles triangle, then the side is 3x cm.

In an isosceles triangle, the two sides are equal.

Let’s write down the formula for finding the perimeter.

P = 2a + b;

2 * 3x + x = 14;

6x + x = 14;

7x = 14;

x = 14: 7;

x = 2 cm base of the triangle.

3x = 3 * 2 = 6 cm side of the triangle.