The width of the pen must not be less than 45 feet
Perimeter of the pen
The formula for calculating the perimeter of a rectangle is expressed as:
P = 2(l + w)
Given the following
P = 190feet
l = 50feet
Required width
190 = 2(50 + w)
95 = 50 + w
w = 45
Hence the width of the pen must not be less than 45 feet
Learn more on perimeter of rectangle here: https://brainly.com/question/19819849
