One side of the rectangle is 28 cm. The other side is 3 times larger. Find the perimeter of the rectangle.

univerkov | June 15, 2021 | education

1) Determine how long the second side of the rectangle is, if we know that its first side is 3 times smaller and it has a length of 28 cm.

28 * 3 = 84 cm.

2) We find out what perimeter a given rectangle has if we know that one side of it is 28 cm long, and we found out the length of the second side and it was 84 cm.

2 * (84 + 28) = 224 cm.

Answer: the perimeter of this rectangle is 224 cm.

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