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Earn +20 ptsQ: How many square ft is in 20'X40'?
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A 20ft by 40 ft swimming pool is surrounded by a deck d feet wide. what is the area of the deck?
Area of deck = (20+2d)x(40+2d)-(20x40) Area of deck = (20x40)+40d+80d+4d2 -(20x40) Area of deck = 120d+4d2
How many square ft in 15 ft by 64 ft roof?
960 square feet.
How many square ft is 18 ft x 18 ft?
There are 324 square feet
How many square ft are in a room that is 13 ft by 6 ft 9 in.?
87.75 square inches
How many square ft is 35 ft by 50 ft?
1750
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