add them all then divide by 4 then multiply x2
simply multiply. A linear foot in either direction is still a foot. Foot times foot equals square feet. That's 225 square feet.
room height=8ft, width=13ft lengh=15ft. what is square feet?
20ft * 15ft = 300 square feet.
100
10.6ft by 10.6ft
15ft X 52ft = 780 square feet.
15ft is 5 yds, so 15ft x 15ft is the same as 5yds x 5yds which would equal 25 square yards.
18.12 square meters.
24ft x 15ft = 360 ft^2 = 360 square ft 360 square ft = 33.4 square meters
18.1160928 square meters
22ft * 15ft = 330 sq ft = 30.658 sq metres
yes
16.72 square meters.
12.54 square meters.
13.94 square meters.
4.18 square meters.
56 square foot = 5.202 570 24 square meter