The length of the first side of the rectangle is 20 cm, and the second is 20 mm. we need to find the perimeter of this rectangle.

univerkov | February 13, 2021 | education

By the condition of the problem, the sides of the rectangle are 20 cm and 20 mm.

We translate the side of the rectangle in cm: 20 mm = 2 cm.

Find the perimeter of the rectangle by doubled sum of its two sides:

P = 2 (20 + 2) = 2 * 22 = 44 (cm).

Answer: the perimeter of the rectangle is 44 cm.

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