The width of the rectangle is 3 cm and the length is 2 times more. Find the perimeter.

1. We know that the length of the rectangle is 2 times larger than its width, therefore, multiplying the width by 2, we will calculate the length of the given rectangle. Find the length if it is known that the width is 3 cm.

2 * 3 = 6 cm.

2. To find the perimeter of a rectangle, add the lengths of all its sides. If the length of the rectangle = a cm and the width = in cm, then the perimeter P = a + a + b + b = 2 * a + 2 * b.

Let’s calculate the perimeter of the given rectangle.

P = 2 * 6 + 2 * 3 = 12 + 6 = 18 cm.

Answer: The perimeter of the rectangle is 18 cm.