Geometry Lesson 1-2: Points, Lines, Planes

thickness; width

A line has no ___________ or ________.

infinite points

A line is made up of _________________.

two endpoints

A line segment is a measurable part of a line consisting of ________________.

indefinitely

A plane extends ____________ in all directions.

flat surface

A plane is a ___________________ made up of points.

location in space

A point is a _____________.

one endpoint

A ray is part of a line consisting of ____________________.

capital letter

Always use a ____________________ to name a point.

two

Any _______ points form a line.

three

Any ________ points make up a plane.

Two lines intersect at a point.

What is an intersecting line?

Two planes intersect at a line.

What is an intersecting plane?

Coplanar Points

Points that lie on the same plane.

dimension; size

It has no ___________ or _________.

two; lowercase script letter

Name a line by any _____ points on the line, or a _________________________.

endpoints

Name a line segment by using the ________________.

three; uppercase script letter

Name a plane by any ________ non-collinear points on the plane, or an ___________________________.

endpoint; point

Name a ray by using the ______________ and any other _________ on the ray.

an endpoint

Opposite rays are two rays that share __________________.

line

Opposite rays together form a ________.

Non-Collinear Points

Points that do NOT lie on the same line. (Must be at least three points!)

Non-Coplanar Points

Points that do NOT lie on the same plane. (Must be at least four points!)

Collinear Points

Points that lie on the same line.