Basics of Geometry

What is a point?

• A location in space that is represented by a dot and has no dimension

• A part of a line that consists of two endpoints and all points on the line between the two endpoints

• A part of a line that consists of an endpoint and all points on the line on one side of the endpoint

• Two rays that have the same endpoint and form a line

What is a line segment?

• A location in space that is represented by a dot and has no dimension

• A part of a line that consists of two endpoints and all points on the line between the two endpoints

• A part of a line that consists of an endpoint and all points on the line on one side of the endpoint

• Two rays that have the same endpoint and form a line

What is a plane?

• A location in space that is represented by a dot and has no dimension

• A part of a line that consists of two endpoints and all points on the line between the two endpoints

• A flat surface made up of points that has two dimensions and extends without end

• Two rays that have the same endpoint and form a line

What are collinear points?

• Points that lie on the same straight line

• A part of a line that consists of two endpoints and all points on the line between the two endpoints

• A part of a line that consists of an endpoint and all points on the line on one side of the endpoint

• Two rays that have the same endpoint and form a line

What are coplanar points?

• Points that lie on the same straight line

• A part of a line that consists of two endpoints and all points on the line between the two endpoints

• Points that lie in the same plane

• Two rays that have the same endpoint and form a line

What is part of a line that goes forever in just one direction?

• line
• line segment
• ray
• plane

What are lines that intersect to make a right angle?

• perpendicular
• complementary
• intersecting
• parallel

What is the name of this ray?

• Ray AB
• Ray BA
• Ray B
• Ray A

Name three coplanar points.

• D, E, B
• C, B, A
• M, E, C
• A, F, E

Find the length of TU

• 10
• 52
• 12
• 22