The sides of the triangle are 7.5 cm; 6 cm; 4.5 cm Calculate the perimeter of each triangle.

Given:

a1 = 7.5 centimeters – the length of the sides of the first triangle;

a1 = 6 centimeters – the length of the sides of the second triangle;

a3 = 4.5 centimeters – the length of the sides of the third triangle.

It is required to determine P1, P2 and P3 – the perimeters of each triangle.

Since it is not specified in the problem statement, we consider all triangles to be equilateral (that is, their sides are equal). Then:

P1 = 3 * a1 = 3 * 7.5 = 22.5 centimeters.

P2 = 3 * a2 = 3 * 6 = 18 centimeters.

P3 = 3 * a3 = 3 * 4.5 = 13.5 centimeters.

Answer: P1 = 22.5 centimeters, P2 = 18 centimeters, P3 = 13.5 centimeters.