The length and width of the rectangular and together is 21 cm.

The length and width of the rectangular and together is 21 cm. What is the length and width of the rectangular and if the length is 6 times the width?

1. We will conventionally take the width of the rectangle as one part, and the length as six parts (according to the terms of the assignment).

2. The total length and width are:

1 + 6 = 7 pieces or 21 cm.

3. Let’s calculate the size of one part of the rectangle:

21: 7 = 3 cm – width.

4. Length value:

21 – 3 = 18 cm or 6 3 = 18 cm.

Answer: the rectangle is 3 cm wide and 18 cm long.