Using only whole numbers, how can you draw three rectangles with perimeter of 12 units

Perimeter means the sides add up to 12.

Rectangles have two pairs of equal sides.

2 (one side) + 2 (another side) = 12

2 (one side + another side) = 12

(one side + another side) = 6

To draw a rectangle with a perimeter of 12 units, the two adjacent sides must add up to 6.

1 + 5

2 + 4

3 + 3