Geometry Basics Vocab Matching Quiz

Match the word and definition.

• One endpoint, infinite in one direction

• Point

• A location in space

• Ray

• Extends infinitely in both directions

• Line

• A flat surface made up of points.

• Segment

• Part of a line between two endpoints.

• Plane

Match the word to its definition.

• Points on the same line.

• Coplanar

• Points on the same plane.

• Collinear

• 4+ points NOT on the same plane.

• Non-Coplanar

• 3+ points NOT on the same line.

• Non-Collinear

Two lines intersect at a ​ (a)   .

• Point
• Line
• Plane

Two planes intersect at a ​ (a)   .

• Line
• Plane
• Point

A plane and a line intersect at a ​ (a)   .

• Plane
• Point
• Line

Match the following

• To cut in into two congruent segments.

• Midpoint

• A point that bisects a segment.

• Bisect

• The same. Having equal measures.

• Congruent

Match the following

• Measuring between 90 and 180 degrees.

• Straight

• Measuring less than 90 degrees.

• Acute

• Measuring exactly 90 degrees.

• Right

• Measuring more than 180 degrees.

• Obtuse

• Measuring exactly 180 degrees.

• Reflex

Match the following

• Straight Angle

• 
• Right Angle

• 
• Reflex Angle

• 
• Acute Angle

• 
• Obtuse Angle

• 

Match the following

• Angles both adjacent and supplementary

• Adjacent Angles

• Two angles that add up to 180 degrees.

• Linear Pair

• Two angles that add up to 90 degrees.

• Vertical Angles

• Across an intersection, always congruent

• Complementary Angles

• Next to each other, share a side.

• Supplementary Angles

Match the following

• Linear Pair

• 
• Vertical Angles

• 
• Supplementary Angles

• 
• Adjacent Angles

• 
• Complementary Angles

•