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.
A rectangular pyramid is a solid which has a rectangle shape at the base and the four faces on the four sides of the rectangle which are isosceles triangles meeting at a point in the heavens. So the rectangular pyramid has 5 faces - one a rectangle at the base and the other four are isosceles triangles on the four faces. It has 8 edges - four at the base and four above the base and meeting at a common point.