Calculate the perimeter of a rectangle whose width is 4 cm and it is 3 times less than its length.

univerkov | May 21, 2021 | education

Find the length of the rectangle b = a * 3 = 4 * 3 = 12 cm.
The perimeter is equal to the sum of all sides of the rectangle, i.e. P = 2 * (a + b) = 2 * (4 + 12) = 32 cm.
Answer: The perimeter of the rectangle is 32 cm.

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