Basic Concepts of Geometry

👉 Point

A point is one that has no length, width, or height; it only has position. When two line segments intersect each other, a point is created at the intersection (intersection point).

Point & Point of Intersection

A point is one that has no length, width, or height; it only has position.

Concurrent Line

If some lines lead to a certain point, those lines are called concurrent lines.

👉 Line

If a mark is made on paper with a ballpoint pen in any way, it will be a line drawing.

Line

Curve Line

Straight Line

👉 Line Segment

Line Segment

A line segment with two endpoints is called a line segment.

👉 Straight Line

To draw a straight line, at least two points are needed. The shortest distance between two points is a straight line.

Straight Line

The shortest distance between two points is a straight line.

👉 Ray

Ray

A straight line with one endpoint is called a ray.