Question

1. BUILD A FENCE Mrs. Chen wants to build

a fence around her yard so that her
dog, Fluffy, can run free. The yard she
wants to fence is 60 feet by 30 feet. The
fencing is sold by the linear foot, so in
order to figure out how much fencing
she needs, Mrs. Chen needs to know
the perimeter of the yard.
Find the yard's perimeter.​

Answer 1

180 ft

Explanation:

The perimeter of a geometric figure is the sum of the lengths of its sides. Opposite sides of a rectangle are of equal length, so the perimeter can be figured as twice the sum of the length of adjacent sides:

2(60 ft + 30 ft) = 180 ft

Mrs. Chen needs 180 feet of fence.