Answer:
Length - 54 yds
Width - 18 yds
Step-by-step explanation:
72 yds = perimeter
3x + x =72
4x = 72
Since 4x equals 72, you would divide 72 by 4 to find out how much x equals.
72/4 = 18 yds
18 yds = width
Since the length is three times as long as the width, you would multiply 18 by 3.
18 x 3 = 54
54 yds = length
