21 ft * 10 ft = 210 sq ft = 19.51 sq metres.
11 ft * 13 ft = 143 sq. ft, so the room has an area of 143 sq. ft
approx. 172.5 square feet
12 in = 1 ft → 11ft 8in x 11ft 3 in = 118/12 ft x 113/12 ft = 112/3 ft x 111/4 ft = 35/3 ft x 45/4 ft = 525/4 sq ft = 1311/4 sq ft = 131.25 sq ft
Length times width gives you the answer, surely you can do 11X 12 in your head or on your phone....
110 sq ft
882 square feet.
21 ft * 10 ft = 210 sq ft = 19.51 sq metres.
13ft * 11ft = 143 Sq feet.143 square foot = 13.28513472 square meter
11 ft * 13 ft = 143 sq. ft, so the room has an area of 143 sq. ft
121 sq ft
approx. 172.5 square feet
To convert feet to square meters, you need to multiply by 0.0929. In this case, a 10ft x 11ft room would be 110 square feet. Multiplying 110 square feet by 0.0929 gives you approximately 10.22 square meters in a 10ft x 11ft room.
12 in = 1 ft → 11ft 8in x 11ft 3 in = 118/12 ft x 113/12 ft = 112/3 ft x 111/4 ft = 35/3 ft x 45/4 ft = 525/4 sq ft = 1311/4 sq ft = 131.25 sq ft
A rectangle that measures 19-ft by 11-ft has an areaof 209 square feet = 19.42 square meters (rounded)
Length times width gives you the answer, surely you can do 11X 12 in your head or on your phone....
That would be 63 square feet