Intro to Geometry

Lines in the SAME plane that will never meet.

• Perpendicular Lines

• Parallel Lines

• Skew Lines

Lines in different planes that will never meet.

• Parallel Lines

• Intersecting Lines

• Skew Lines

An angle with a measure equal to 180 degrees is called a _____________________.

• straight angle

• line

• obtuse angle

• acute angle

A line has one dimension. It is represented by a line with two arrowheads, but it extends without end.

• Point

• Line

• Plane

• Angle

Consists of 2 endpoints and all the points in between.

• Ray

• Line

• Line Segment

• Angle

Select the correct definition.

Vertical Angles

• a figure formed by two rays with a common endpoint.

• angles that share a ray.

• two angles that are opposite of each other and congruent.

• two angles that have a measure of 180 degrees.

What is a line segment?

• Part of a line with 2 endpoints

• Part of a line that has 1 endpoint

• Part of a line with 0 endpoints

• Part of a line with 5 endpoints

What does the image show?

• a line

• a line segment

• a ray

• a point

What does the image show? 
(The whole thing, not just the points)

• a ray

• a line

• a line segment

• a point

A _____ is straight and extends in both directions forever.

• point

• line

• line segment

• ray