To find the square footage of a room, you multiply the length by the width. In this case, the room measures 10 feet by 12 feet, so the square footage would be 10 x 12 = 120 square feet.
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6.3245553 To get square feet, multiply base times the height (or the two sides). So, assuming the dimensions you offered are in feet, 10' X 4' = 40 square feet.
80 square feet. This is an easy calculation - just multiply the length by the width. The answer is the number of square feet.
120 square feet on the floor, and another 120 square feet on the ceiling. We can also calculate the square feet on the walls if we know the height of the ceiling.
10 x 12 = 120
115.5 square feet.
There are 61.1 square feet in an area that measures 66x100 inches.
178.5 square feet (8.5 x 21 = 178.5).