Calculate the perimeter of a triangle of 1 side of which is 56 millimeters, and the other two are 62 millimeters.

To calculate the perimeter of a triangle, we will use the formula:

P = a + b + c,

where P is the perimeter of the triangle,

a, b, c – sides of the triangle.

In our case, the formula will take the form:

P = AB + AC + BC.

Considering that the side AC = BC, it can be argued that the triangle ABC is isosceles.

Therefore, the formula for finding the perimeter of an isosceles triangle can be represented as:

P = AB + BC + AC = AB + 2 * BC = AB + 2 * AC.

Substitute the values ​​and define the perimeter:

P = 62 mm + 2 * 56 mm = 62 mm + 112 mm = 174 mm.

Let’s translate the result into centimeters, knowing that 1 cm = 10 mm:

174 mm / 10 mm = 17.4 cm = 17 cm 4 mm.

Answer: P = 17 cm 4 mm.