answersLogoWhite

0

The usual definition is that the lines should be straight. On "alternative geometries", other definitions may be used. For example, on a sphere, the large circles (the largest you can make, whose center is the center of the sphere) replace straight lines. Note that in this case, the normal parallel axiom is no longer valid.

User Avatar

Wiki User

16y ago

What else can I help you with?

Related Questions

Does a oval have parallel lines?

No. An oval consists of curved lines.


How capacitor is denoted?

2 parallel lines. sometimes one line is curved, if so that is the outside or "shield" foil.. ANSWER : A curved parallel line define a less positive terminals of the two lines. capacitors do not have shields


How many parallel lines does does an ellipse have?

An ellipse does not have any parallel lines in the traditional sense, as it is a continuous curved shape. However, if you consider the tangent lines to an ellipse at different points, there can be pairs of tangent lines that are parallel to each other. In general, the concept of parallel lines is not applicable to the entire structure of an ellipse.


How many curved lines does a oval have?

An ellipse has just one. An oval can also refer to a circle that has been stretched by inserting two parallel straight sections - as in a running track. In such cases, it has two curved lines.


Different types of lines in mathematics?

Different types of lines are :parallel lines, intersecting lines, perpendicular lines,oblique lines, vertical lines, horizontal lines, zigzag lines, curved lines ,wavy lines, and dashed or dotted lines.


Can there be parallel lines in a circle?

The two points on exactly opposite sides of a circle are parallel to each other. This can be evidenced by finding the derivative/gradient at those points; if they are the same then the two line segments described by those points are parallel.


Which letter looks like two parallel lines connected by a curve?

The letter that resembles two parallel lines connected by a curve is the letter "S." Its shape consists of a curved line that connects two straight segments, giving it the appearance of being formed by parallel lines on either side.


Are latitude and longitude lines curve or straight?

Latitude lines are parallel straight lines that run east-west, while longitude lines are not parallel to each other and appear curved when projected onto a map. Longitude lines converge at the poles and are widest at the equator.


How many parallel lines in a cylinder 2?

A cylinder includes an infinite number of parallel lines. Every line in the curved surface is parallel to every other one and perpendicular to the two ends. . "A cylinder 2" is meaningless. You would have to look at the homework you're trying to get the answer for to see what cylinder 2 means.


What are the curved lines?

Lines that is curved. E.G the outline of a circle.


Are curved lines wavy lines?

Multiple curves, or arcs, comprise a wave which generally consists of a crest (high point) and a trough (low point). So generally speaking, a wavy line would be two or more curved lines that are connected.


When are two lines nonintersecting?

When two lines are parallel, then they do not intersect.