40 ft * 21 ft = 840 sq ft = 78.04 sq metres (to 2 dp).
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21 feet x 24 feet = 504 square feet = 46.82 square meters.
21 square meters is 226.04 square feet.
1 foot = 0.3048 meter 16 feety x 21 feet = (16 x 0.3048) meters x (21 x 0.3048) meters
262.5ft² = 24.39m²
To convert square feet to square meters, you need to multiply by 0.0929. The room is 21 ft x 14 ft = 294 square feet. To convert this to square meters, you would multiply 294 by 0.0929, which equals approximately 27.31 square meters.