Basic Geometry

What is Geometry?

• The study of life

• The study of points, lines, and planes

• The study of collecting data

• The study of properties and behavior of matter

A point is represented by a

A point is

• A specific location, and has not width/length/thickness

• Extends infinitely in both directions, has no width/thickness, but has length

• A flat surface that extends infinitely in all direction, has no thickness, but has width and length

A line is

• A specific location, and has not width/length/thickness

• Extends infinitely in both directions, has no width/thickness, but has length

• A flat surface that extends infinitely in all direction, has no thickness, but has width and length

A plane is

• A specific location, and has not width/length/thickness

• Extends infinitely in both directions, has no width/thickness, but has length

• A flat surface that extends infinitely in all direction, has no thickness, but has width and length

A line is represented by a

A plane is represented by a

Collinear points

• Two or more points that lie on the same plane

• A line with two end points

• Starts at one point and infinitely at the other direction

Line segment

• Two or more points that lie on the same plane

• A line with two end points

• Starts at one point and infinitely at the other direction

Ray

• Two or more points that lie on the same plane

• A line with two end points

• Starts at one point and infinitely at the other direction