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.
The figure described will be a pyramid.
It is a polygonal pyramid.
A polygon, by definition, is a CLOSED plane shape, bounded by straight sides. Every polygon must begin and end at the same point.
That's the plural of vertex, which is each angular point of a polygon, polyhedron, or other figure. • a meeting point of two lines that form an angle. • the point at which an axis meets a curve or surface.
Verities- the highest point or each angular point of a polygon.
a pyramid.
A pyramid
The description given fits that of a pyramid
The figure described will be a pyramid.
pyramid
A pyramid would fit the given description
a polygon a polygon * * * * * No it is not! If the line is in that plane then it is the whole line. If not, it is a single point.
A vertex is the point where three or more edges of a solid figure meet.
polygon I think I would say, it is a circle.
A figure having zero dimensions is a point.
A pyramid.
An angle. A polygon is a plane figure bounded by straight sides (triangle, quadrilateral, pentagon, etc).