<Table> <Tr> <Th_colspan="2"> Square pyramid </Th> </Tr> <Tr> <Td_colspan="2"> </Td> </Tr> <Tr> <Th> Type </Th> <Td> Johnson J--J--J </Td> </Tr> <Tr> <Th> Faces </Th> <Td> 4 triangles 1 square </Td> </Tr> <Tr> <Th> Edges </Th> <Td> 8 </Td> </Tr> <Tr> <Th> Vertices </Th> <Td> 5 </Td> </Tr> <Tr> <Th> Vertex configuration </Th> <Td> 4 (3. 4) (3) </Td> </Tr> <Tr> <Th> Schläfli symbol </Th> <Td> () ∨ (4) </Td> </Tr> <Tr> <Th> Symmetry group </Th> <Td> C, (4), (* 44) </Td> </Tr> <Tr> <Th> Rotation group </Th> <Td> C, (4), (44) </Td> </Tr> <Tr> <Th> Dual polyhedron </Th> <Td> self </Td> </Tr> <Tr> <Th> Properties </Th> <Td> convex </Td> </Tr> <Tr> <Th_colspan="2"> Net </Th> </Tr> <Tr> <Td_colspan="2"> </Td> </Tr> </Table> <Tr> <Th_colspan="2"> Square pyramid </Th> </Tr>

How many vertices does a square based pyramid have