The vertex of an angle
A geometric solid. The answer is NOT polyhedron. A cone, for example, which is a figure made up of the most simple geometric shapes (a straight line) and a circle, is not a polyhedron.
A geometric figure that has three line segments for sides is a triangle. Rectangles and squares are made of four line segments, while a circle is made out of a pair of arcs.
A closed geometric figure could be called a polylateral - but that is a very obscure word - or simply a polygon. Generally such a figure is referred to in terms of how many lines it is composed of: 3 = triangle 4= quadrilateral 5 = pentagon, etc.
a geometric shape made up of 20 triangles. :)
...a cylinder...
It is an angle.
An angle is a geometric figure formed by two rays that share a common endpoint.
A construction. A contruction is a geometric drawing of a figure usually made by a compass and a straightedge.
A figure that is made up of two noncollinear rays with a common endpoint is an angle. The angle that is formed can be acute, right, obtuse or reflex.
A geometric solid. The answer is NOT polyhedron. A cone, for example, which is a figure made up of the most simple geometric shapes (a straight line) and a circle, is not a polyhedron.
An angle or a vertex.
A triangle is a geometric figure that is made of three line segments. It is a closed figure and has three angles.
Only one point. A dimensionless figure.
A composite figure is a figure that is made up of two or more geometric figures.
A cone !
Polygon. :)
Such at figure - as described - could not be made as a solid geometric shape.