The side of the square is 6 cm. What is the length of a rectangle with a width of 4 cm, which has the same area?

To solve this problem, recall the formula for the area of a rectangle. The area of the rectangle is equal to the product of the length and the width. S = a * b, where a is the length and b is the width. The area of a square is equal to the square of its side. S = a ^ 2. Let’s calculate what the area of a square with a side of 6 centimeters is equal to.
S = 6 * 6 = 36 square centimeters.

Knowing that the width is 4 cm, and the area is 36 sq. Cm, we calculate what the length of the rectangle is.

a = 36/4 = 9 centimeters.

Answer: 9 cm.