Question

A rectangular yard is 10 ft long by 7 ft wide. What is the ratio of the width of the yard to the perimeter of the yard?

Answer 1

7:34, 7/34, or “7 to 34”. There are a few ways to express the ratio.


Perimeter is P = 2L + 2W, where L is length and W is width.
From the given information, P = 2(10) + 2(7) = 34.
So we know the perimeter is 34 feet, and the given width is 7ft.
The ratio of width to perimeter is 7:34 or “7 to 34” or 7/34. There’s a few ways to show the ratio.