The apex of an object is typically it's highest point, turning point, or climax. There fore the very tip of a pyramid would be its apex as long as you define one side as ground level (The base).
Obviously, the pyramids have a lot to do with triangles. To find the hight, length, width, volume, angle of ascent, and surface area of the pyramids, the egyptians had to use trigonometry.
no....
Yes
north
Zenith or apex.
All pyramids have an apex, including a pentagonal one.
All pyramids have only one apex.
The top of the pyramid is called the 'Apex.'
Assume square pyramids. Use the smaller of the two as the apex of a hexahedron that is a square frustum of the right measurements.
calyx
Typical figures are cones and pyramids.
Pyramids are a type of polyhedron that has a polygonal base with triangles extending from it to form an apex. The pyramids of Egypt would be examples of square pyramids because the bottom of them are squares. Likewise, you could have a pentagonal pyramid, hexagonal pyramid, pentagrammic pyramid etc.
They depend on radius rather than perimeter.
Population pyramidsUrbanizationForm of goverment
With the base of the pyramid resting on the ground, and the apex pointing at the sky. Silly question.
This sounds like you are talking about a pyramid. Pyramids in Geometry are not restricted to the square pyramids you may be used to seeing in pictures of from Egypt. Pyramids are named after the type of polygon that make up their base. In Egypt, since the bases of those pyramids are squares, they are known as square pyramids. If you had a pyramid with a pentagon for a base, then it would be a pentagonal pyramid. Pyramids always have triangles for sides that meet at a common point at the top which is known as the apex.