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.