SOLUTION: mark is building a sidewalk three feet wide around a rectangular garden that is 60 feet by 70 feet. this will create a new combined rectangle ( garden plus sidewalk) that is 66 fee

Question 939166: mark is building a sidewalk three feet wide around a rectangular garden that is 60 feet by 70 feet. this will create a new combined rectangle ( garden plus sidewalk) that is 66 feet by 76 feet. how many square feet will the surface of the sidewalk be.
Found 2 solutions by ewatrrr, josgarithmetic:
Answer by ewatrrr(24785) (Show Source): You can put this solution on YOUR website!
()ft^2 = 816ft^2
Answer by josgarithmetic(39620) (Show Source): You can put this solution on YOUR website!
You know enough for quickly finding the area of the garden and the total combined area. The difference is the area of just the sidewalk.

816 square feet
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