Very easy. Just multiply the two dimensions: 40' x 30' = 1,200 square feet.
40 square feet are 3.716122 square meters.
30 x 40 = 1200 square feet.
multiply 30 by 40 30X40 = 1,200 square feet == ==
40 x 14 = 560 square feet
30 × 40 = 1200 square feet
30 X 40 + 1200 sq/ft
The area of 30 feet times 40 feet are 1200 square feet. But, when a house is advertised as containing 'xx square feet of living area', that can include second and third floors or a finished basement or attic, so a 30 X 40 house could be a 6000 square foot home.
8.33 square feet.
30" x 40" is 8.33 square feet.
40 inches times 9 inches are 360 square inches. 360 square inches are 2.5 square feet.
30 x 40 = 1200
9 square feet = 1 square yard Area of the floor = 12' x 30' = 360 square feet = 40 square yards