Build a rectangle ABCD with sides 2cm5mm and 4cm5mm. Find the perimeter of the rectangle.

To solve this task, you need to find the perimeter of the rectangle.

Let’s consider this task and analyze it.

According to the condition of the assignment, a rectangle is given in which side A is equal to two centimeters five millimeters, side B is four centimeters 5 millimeters. As:

1cm = 10mm, so the sides of the rectangle are equal;

A = 2cm 5mm = 2.5cm;

H = 4cm 5mm = 4.5cm;

The perimeter is the sum of the lengths of all sides. Since in a rectangle the opposite sides are equal, we write down the formula for the perimeter;

P = (A + B) * 2 = (2.5 + 4.5) * 2 = 7 * 2 = 14cm.