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## What is a line VS line segment?

A line can be named either using two points on the line (for example, ↔AB ) or simply by a letter, usually lowercase (for example, line m ). A line segment has two endpoints. It contains these endpoints and all the points of the line between them. You can measure the length of a segment, but not of a line.

## Does a line segment has definite length?

So, a line segment is a piece or part of a line having two endpoints. Unlike a line, a line segment has a definite length.

## Do 2 intersecting lines determine a plane?

Two intersecting lines determine a plane. If you hold two pencils so that they cross each other, there’s only one place a flat plane can be placed so that it rests on both pencils.

## What is meant by skew lines?

Two or more lines which have no intersections but are not parallel, also called agonic lines. Since two lines in the plane must intersect or be parallel, skew lines can exist only in three or more dimensions.

## What is one thing that parallel lines and skew lines have in common?

Two or more lines are parallel when they lie in the same plane and never intersect. Skew lines are lines that are in different planes and never intersect. The difference between parallel lines and skew lines is parallel lines lie in the same plane while skew lines lie in different planes.

## Where do you see parallel lines in real life?

Parallel line examples in real life are railroad tracks, the edges of sidewalks, marking on the streets, zebra crossing on the roads, the surface of pineapple and strawberry fruit, staircase and railings, etc.

## Are coplanar lines that do not meet?

Two lines are parallel lines if they are coplanar and do not intersect. Lines that are not coplanar and do not intersect are called skew lines. Two planes that do not intersect are called parallel planes.

## How many planes are determined by skew lines?

Skew lines are lines that are non-coplanar and do not intersect. Two planes are parallel if they never intersect. Two planes are perpendicular if they intersect and form a right angle.

## What do you call points that lie on the same line?

Three or more points that lie on the same line are collinear points . Example : The points A , B and C lie on the line m . They are collinear.

## Why do skew lines lie on parallel planes?

The concept of skew lines in 3D geometry means those two lines which neither intersect nor are parallel. One can think of it as two lines each in two parallel planes but having different directions. So not intersecting as their planes don’t intersect and not parallel as having different direction ratios.

2020-11-04