The perimeter of the rectangle is 42 cm. What is the length and width of the rectangle

The perimeter of the rectangle is 42 cm. What is the length and width of the rectangle if the length is 2 times greater than its width?

1. Since the length of the rectangle is equal to 2 lengths of the width, then the entire perimeter of the rectangle will be equal to 6 lengths of the width, since the perimeter is 2 lengths + 2 widths. Then divide the perimeter of the rectangle by 6 and get the width of the rectangle:
42 cm / 6 = 7 cm.
2. Find the length of the rectangle by multiplying the width by 2:
7 cm * 2 = 14 cm.
Answer: The width of the rectangle is 7 cm and the length is 14 cm.