As the grounds maintenance manager, you need to replace the fence of a 30 foot by 40 foot commercial lot. Which of the following shows the calculation for the perimeter of the lot?

A. 30'+40'+30'+40'=140'

B. 30'+40'=70

C. 30'+30'+30'+40'=130'

D. 30'*40'=120'

Option A

Step-by-step explanation:

If grounds maintenance manager replaces the fence by 30 feet and 40 feet

then we have to find the perimeter of the commercial lot.

Since perimeter = 2 (length + width)

= 2 (30 + 40)

= (30' + 40' + 30' + 40')

Option A is the correct option

The perimeter is found by adding all the outside dimensions together.

You are given the length and width,

The perimeter would be 30 + 40 + 30 + 40 = 140

The answer is A.