The width of the rectangle is 18 cm and it is 4 times less than the length. Find the area and perimeter of the rectangle.

Perimeter formula P = 2 (a + b), where a – length, b – width, P – perimeter.
The formula for the area of a rectangle is S = ab, where a is the length, b is the width, and S is the area.
We find the length of the rectangle, since the width is 18 cm and it is less than the length, then the length will be 18 × 4 = 72 cm.
P = (72 + 18) × 2 = 180.
S = 72 × 18 = 1296.
The answer is S = 1296 square cm, P = 180 cm.