None. You need a second dimension to calculate square meters.
1 acre = 4,046.85642 sq meters
64 x 64 = 4096 sq. metres.
6464
√4,096 = 64
Yes, of 64.
144 square meters
4096 cm
Approximately 19.51 square meters.
11 meters square are 121 square meters.
About 32.5 square meters. (32.516064 square meters)
885 square feet is 82.2191904 square meters.
0.01105 square meters.