<Tr> <Td> 10 </Td> <Td> square kilometre </Td> <Td> km </Td> <Td> 10 </Td> <Td> square millimetre </Td> <Td> mm </Td> </Tr> <Tr> <Td> 10 </Td> <Td> square megametre </Td> <Td> Mm </Td> <Td> 10 </Td> <Td> square micrometre </Td> <Td> μm </Td> </Tr> <Tr> <Td> 10 </Td> <Td> square gigametre </Td> <Td> Gm </Td> <Td> 10 </Td> <Td> square nanometre </Td> <Td> nm </Td> </Tr> <Tr> <Td> 10 </Td> <Td> square terametre </Td> <Td> Tm </Td> <Td> 10 </Td> <Td> square picometre </Td> <Td> pm </Td> </Tr>

How many square feet are in square meter