21 ft * 6 ft = 126 sq ft = 11.7 sq metres approx.
2.229673
24 square feet = 2.229673 square meters
It equals in square meters (6 x 0.3048) x (2 x 0.3048) = 1.1148365 sq meters
Assuming that's a rectangle, convert from feet to meters (1 foot = 0.3048 meters), then multiply.
6ft is 1.83m (approx)
8.756
6 ft = 1.829 metres. So 6 ft * 6 ft = 1.829*1.829 = 3.344 sq metres.
1.9304m
360
6-ft = 1.8288 meters (rounded)
6 x 6 = 36 square feet.
10ft x 6ft = 60 sq ft = 5.57 sq metres, approx.