Pyramid
The pyramid is a polyhedron, which base is a polygonal surface (triangle, four - five-... a square) and outer surface is triangles with the general vertex - apex.
The pyramid is called right or regular if its base is a regular polygon and apex is located above the centroid of a base polygon.
Do you remember how to construct a regular polyhedron?
Do you remember how to construct a regular polyhedron?
The lateral surfaces of a regular pyramid are identical triangles.
Try to name pyramid elements during the test (the picture is the test button).
Try to name pyramid elements during the test (the picture is the test button).