<Tr> <Td> </Td> <Td> </Td> <Td> C ♯ </Td> <Td> </Td> <Td> </Td> <Td> </Td> <Td> </Td> <Td> </Td> <Td> A ♯ </Td> <Td> </Td> <Td> </Td> <Td> </Td> <Td> G ♯ </Td> </Tr> <P> Thus in addition to being part of the interval - 4 family, C--E is also a part of the sum - 4 family (with C equal to 0). </P> <Table> <Tr> <Td> + </Td> <Td> </Td> <Td> </Td> <Td> </Td> <Td> </Td> <Td> </Td> <Td> </Td> <Td> 5 </Td> <Td> </Td> <Td> 6 </Td> <Td> </Td> <Td> 7 </Td> <Td> </Td> <Td> 8 </Td> </Tr> <Tr> <Td> </Td> <Td> </Td> <Td> </Td> <Td> </Td> <Td> 0 </Td> <Td> </Td> <Td> 11 </Td> <Td> </Td> <Td> 10 </Td> <Td> </Td> <Td> 9 </Td> <Td> </Td> <Td> 8 </Td> </Tr> <Tr> <Td> </Td> <Td> </Td> <Td> </Td> <Td> </Td> <Td> </Td> <Td> </Td> <Td> </Td> <Td> </Td> <Td> </Td> <Td> </Td> <Td> </Td> <Td> </Td> <Td> </Td> </Tr> </Table> <Tr> <Td> + </Td> <Td> </Td> <Td> </Td> <Td> </Td> <Td> </Td> <Td> </Td> <Td> </Td> <Td> 5 </Td> <Td> </Td> <Td> 6 </Td> <Td> </Td> <Td> 7 </Td> <Td> </Td> <Td> 8 </Td> </Tr>

A square has how many line of symmetry