Find the perimeter and area of the rectangle if one side is 9 cm and the other is 3 times smaller.

univerkov | July 19, 2021 | education

First, find the second side of the rectangle.

a = 9 cm ÷ 3 = 3 cm.

Find out the perimeter of the rectangle by multiplying the sum of the two sides by two.

P = (9 cm + 3 cm) * 2 = 24 cm.

Find out the area of a rectangle by multiplying one side by the other.

S = 9 cm * 3 cm = 27 cm².

Answer: the perimeter is 24 cm, the area is 27 cm².

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