# A piece of rectangular plywood has a length of 4 times its width, the width of this piece is 5 dm2.

June 27, 2021 | education

| **A piece of rectangular plywood has a length of 4 times its width, the width of this piece is 5 dm2. Find the perimeter of the piece of plywood.**

Determine the length of the piece of plywood.

5 * 4 = 20 dm.

The length of a piece of plywood is 20 dm.

We find the perimeter. From the rule, we know that the perimeter is the sum of the length and width multiplied by 2.

P = (20 + 5) * 2

P = 25 * 2

P = 50 dm.

Answer: The perimeter of a piece of plywood is 50 dm.

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