Question

In a layout of Mark’s backyard, the ratio is 1 centimeter = 10 meters. The length of the rectangular deck on the layout is 4 cm and the width is 3 cm. What is the perimeter of Mark’s deck?

Answer 1

140 m

Explanation:

The length of the rectangular deck on the layout is 4 cm and the width is 3 cm.

Find the perimeter of the layout deck:

`P_{\text{layout deck}}=2\text{Length}+2\text{Width}=2\cdot 4+2\cdot 3=8+6=14\ cm`

You know that 1 centimeter = 10 meters.

To find the perimeter of Mark's deck, just multiply the number of centimeters the perimeter of layout deck consists of by 10:

`P_{\text{Mark's deck}}=14\cdot 10=140\ m`