Compare the areas of a 6cm square and a 12cm and 3cm rectangle.

A rectangle has opposite sides equal and parallel.

The area of ​​the rectangle is calculated by multiplying the length of the figure by its width.

Let’s write down the formula for determining the area of ​​a rectangle:

S = a * b;

S is the area of ​​the rectangle;

a and b – its length and width.

A square is a rectangle with the same sides.

The formula for determining the area of ​​a square is:

S = a * a = a ^ 2;

S is the area of ​​the square;

a – the length of the side of the figure.

Find the area of ​​the square:

S = 6cm * 6cm = 36cm2.

Rectangle area:

S = 12cm * 3cm = 36cm2.

Answer: the areas of a square and a rectangle are equal.