30x40 sq ft = how many marlas
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30 x 40 = 1200 square feet.
30 × 40 = 1200 square feet
30" x 40" is 8.33 square feet.
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.
1,200 square feet (40 x 30 = 1,200).