Geometry Vocabulary

An angle whose measure is 180 degrees

• vertical angle

• obtuse angle

• adjacent angle

• straight angle

Points that lie in the same plane

• Copilots

• Collinear

• Coplanar

• Complementary

A line, ray, or segment that divides a segment into two congruent segments.

• Segment Bisector

• Midpoint

• Angle Bisector

• Apple Pie

Points that lie on the same line.

• Midpoint

• Coplanar

• Complementary

• Collinear

A__________ is a fixed position in space and has no dimensions or size.

• Point

• Line

• Plane

• Cube

A ________ has infinite points; one dimension and extends in opposite directions forever.

• Point

• Line

• Line segment

• Plane

A _______ consists of an infinite number of points which form a flat surface that extends in all directions forever.

• Point

• Line

• Line segment

• Plane

How many point are required to name a specific plane

• 3

• 2

• 1

• 0

Give another name for line k.

• Line BC

• Line BCE

• Line ED

• Line k is the only name, and there isn't another name.

What is part of a line that has two endpoints?

• Line

• Line Segment

• Ray

• Point