560 squared inches
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You have 40*14 = 560 square inches.
14 inches x 40 inches = 560 square inches = 38/9 square feet
Add up the three dimensions of your box, suitcase, etc. Height plus width plus depth should total 40. Examples include: 15 inches wide, 15 inches deep, 10 inches high = 40 linear inches Also 25 inches wide, 10 inches deep, 5 inches high = 40 linear inches
20 square feet.
Frst convert feet into inches . Next multiply. So 480 inches multiplyed by 72 inches equals 34,560 square inches