Basics of Geometry Vocab

What is a line?

• a straight path of points that goes on and on in two directions

• an endless flat surface

• an exact location in space

• lines that never intersect

What is a ray?

• Part of a line with 2 endpoints

• Part of a line with 1 end point and goes on forever 

• Part of a line with 0 endpoints

• Part of a line with 5 endpoints

An angle that measures between 0 and 90

• Obtuse

• Acute

• Straight

• Right

An angle that measures 90 degrees

• Acute

• Obtuse

• Straight

• Right

A straight path that goes on forever in both directions

• Ray

• Line Segment

• Line

An angle that measures between 90 and 180

• Acute

• Obtuse

• Straight

• Right

An angle that measures 180 degrees

• Right

• Acute

• Obtuse

• Straight

A straight path with two endpoints

• Line

• Line Segment

• Ray

• Angle

Figures with the same measurement

• Similar

• Different

• Congruent

• Area

Angles in the same plane with a common vertex & a common side, but no overlap.

• Vertical

• Complementary

• Adjacent

• Suplementary