64000 x 64000 mm2
The area can't be 64 meter, because "meter" is not a unit of area.The area of the square could be 64 square meters, if each of its sidesis 8 meters long.
8*8 = 64 square meters
There are 0.1 square miles in 64 acres.
64
64 if you are in a 25 meter pool
64 square feet
64 pawns upon a 64 square chessboard - one pawn per square .
64
64 amps in less than 100 meter long
It is: 4*pi*16 = 64*pi square meters
64 inches = 162.56 centimeters = 1.63 meters
640 acres = 1 square mile 64 acres = 0.1 square mile