SOLUTION: what is the outer perimeter of a sidewalk if the sidewalk is 12 ft wide by 20 ft long ?

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Question 577927: what is the outer perimeter of a sidewalk if the sidewalk is 12 ft wide by 20 ft long ?
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
P = 2L + 2W

P = 2(20) + 2(12)

P = 40 + 24

P = 64


So the outer perimeter is 64 ft.