The lateral side of an isosceles triangle is three times the size of the base. The perimeter is 56 cm.

The lateral side of an isosceles triangle is three times the size of the base. The perimeter is 56 cm. Find the sides of the triangle.

We can solve this problem using the equation. To compose the equation, we need to designate the unknowns. The first unknown of the base of the triangle will be denoted as X. The second unknown side of the lateral triangle will be denoted as (3 * X), ​​since according to the condition of the problem, the lateral triangle is three times larger. The third unknown second side of the triangle is equal to the first side, since the triangle is isosceles.

Let’s make the equations.

X + 3 * X + 3 * X = 56.

7 * X = 56.

X = 56: 7.

X = 8 cm base of the triangle.

3 * X = 3 * 8 = 24 cm sides of the rectangle.