The width of the rectangle is 5cm, and the length is 2cm longer.

The width of the rectangle is 5cm, and the length is 2cm longer. Find out the length of the rectangle and calculate the perimeter. Draw this rectangle.

Width (a) – 5 cm;

Length (b) -? cm, 2 cm more than a;

Perimeter (P) -? cm.

First, let’s calculate the length of the given rectangle:

b = a + 2 = 5 + 2 = 7 (cm).

The perimeter of any polygon is the sum of the lengths of all its sides. Because in a rectangle opposite sides are pairwise equal, then its perimeter can be calculated by the formula:

Ppr. = (a + b) * 2.

We substitute the known values of the length and width into this formula and get:

Ppr. = (5 + 7) * 2 = 24 (cm).

Answer: the length of the rectangle is 7 cm, its perimeter is 24 cm.