Base of an isosceles triangle 11 cm lateral side 7 cm Find the perimeter of a triangle

From the condition it is known that the base of an isosceles triangle is 11 cm, and the side is 7 cm. And we need to find the perimeter of the triangle.

Let’s start by remembering what the perimeter of a geometric shape is.

Perimeter is the sum of the lengths of all sides of a geometric figure. In our case, this is the sum of the lengths of the sides of the triangle.

Let’s write the formula:

P = a + b + c;

The sides are equal to each other, since the triangle is isosceles:

P = 2a + c;

Substitute the values into the formula and calculate:

P = 2 * 7 + 10 = 14 + 10 = 24 cm.