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.
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
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 the slope of the line, and b equals the y intercept, or the point where the line crosses the y axis. Find the equation by first finding the slope, then plugging values for x and y into the formula and solving for b.Full Answer >
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 both left and right from the point of inception, it is considered a 180 degree angle or straight angle.Full Answer >
A chord is a straight line that connects two points on the curve of a circle. Unlike a secant, which is a line that extends infinitely in both directions, a chord is confined to inside the circle.Full Answer >
The radius of a circle is the distance from the center of a circle to any point on its edge. The word derives from the Latin word "radius," meaning a staff, a spoke or a stake of a wheel.Full Answer >