Q:
# How Many Edges Does a Cylinder Have?

A cylinder technically has two curved edges, but in mathematics, an edge is defined as a straight line. Therefore, a cylinder actually has no edges, no vertices and two faces.

Continue Reading
Credit:
Carlos Nieto
age fotostock
Getty Images

Cylinder originates from the Greek word "kulindros," meaning "roller" or "tumbler." It is a basic geometric shape, defined by its axis and enclosed surface area. In differential geometry, a cylinder's properties are more broad. When its cross section is an ellipse, parabola or hyperbola, a cylinder is called an elliptic, parabolic or hyperbolic cylinder, respectively.

Everyday uses of a cylinder are containers, the piston chamber in engines and bullet chambers.

Learn more about Geometry-
Q:
## What Is the Directrix of a Parabola?

A: The directrix of a parabola refers to a straight line that is drawn perpendicular to the axis of symmetry of a parabola. This line does not touch the parab... Full Answer >Filed Under: -
Q:
## How Do You Find the Equation of a Secant Line?

A: A secant line of a curve is a straight line connecting two points on the curve. The equation for a line is given by the formula y = mx + b, where m equals ... Full Answer >Filed Under: -
Q:
## What Is a Ray in Geometry?

A: In geometry, a ray is a straight line extending infinitely from a fixed point. A ray is expressed using an arrow as its symbol (---). A ray cannot be measu... Full Answer >Filed Under: -
Q:
## What Angle Is Zero Degrees?

A: A zero degree angle appears as a straight line that travels from the point of inception to the right or positive side of a number line. If the line travels... Full Answer >Filed Under: