Question

Define vertex.

Answer 1

A point where two or more edges meet is called a vertex. In simpler words, it is the corner of the geometrical shape.

For example: Consider the rectangle: It has $4$ vertices (plural of vertex). As it has $4$ corners and at each corner two edges meet.

Similarly,

• Cubes and cuboids have $8$ vertices
• Cones have $1$ vertex
• Cylinders have no vertex
• Spheres have no vertex (the surface is a curve)