<Table> <Tr> <Td> </Td> <Td> </Td> </Tr> <Tr> <Td> cis - 2 - pentene </Td> <Td> trans - 2 - pentene </Td> </Tr> <Tr> <Td> </Td> <Td> </Td> </Tr> <Tr> <Td> cis - 1, 2 - dichloroethene </Td> <Td> trans - 1, 2 - dichloroethene </Td> </Tr> <Tr> <Td> </Td> <Td> </Td> </Tr> <Tr> <Td> cis - butenedioic acid (maleic acid) </Td> <Td> trans - butenedioic acid (fumaric acid) </Td> </Tr> <Tr> <Td> </Td> <Td> </Td> </Tr> <Tr> <Td> Oleic acid </Td> <Td> Elaidic acid </Td> </Tr> </Table> <Tr> <Td> </Td> <Td> </Td> </Tr> <Tr> <Td> cis - 2 - pentene </Td> <Td> trans - 2 - pentene </Td> </Tr> <Tr> <Td> </Td> <Td> </Td> </Tr>

Explain the relationship between cis & trans fatty acid isomers and their shape