There is no suffix in the word menarche. It is a compound neo-Latin word having two Greek elements: men- for month; and arche for beginning. There is no suffix in the word menarche. It is a compound neo-Latin word having two Greek elements: men- for month; and arche for beginning.
1 A hexagonal pyramid has six triangular lateral faces and a hexagonal base. 2  Hexagonal pyramid is also called as Heptahedron. 3  Surface Area (SA) of a regular hexagonal pyramid is given by SA = 3as+ 3sl, where a is the apothem length of the hexagon, s is the side length of the hexagon, and l is the slant height.
The unique regular hexahedron is the cube, and there are two hexahedra that can be built from regular polygons with equal edge lengths: the regular triangular dipyramid the pentagonal pyramid. Through graph duality, the list of numbers of vertices for each polyhedron in a hexahedron corresponds to the degree sequence (sequence of vertex degrees) of a hexahedral graph. The following table lists the hexahedra, together with their degree sequences, number of vertices , and number of edges , which are related through the polyhedral formula.