SOLUTION: the swimming pool is 12 feet by 20 feet there is a 3 foot wide cement sidewalk all around the pool. what is the outside perimeter of the sidewalk? I think it's 88 feet? I think I h
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Question 359812: the swimming pool is 12 feet by 20 feet there is a 3 foot wide cement sidewalk all around the pool. what is the outside perimeter of the sidewalk? I think it's 88 feet? I think I hit the delete button and didn't what to so can some one help out thanks
Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!
Since "the swimming pool is 12 feet by 20 feet ", the entire enclosure (including the walkway) has a length of 20+2*3=20+6=26 feet and has a width of 12+2*3=12+6=18 feet.
So the outer rectangle is 18 by 26 feet. This means that and
Now let's find the perimeter.
Start with the perimeter of a rectangle formula.
Plug in and .
Multiply and to get .
Multiply and to get .
Add to to get .
So the perimeter of a rectangle with length feet and width feet is feet.
This means that the outer perimeter of the walkway is 88 feet.
So you are correct. Good job.
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