Points, Lines, & Angles Vocabulary

Front

What is an exact location in space?

Back

Point

Front

What is a part of a line that has two endpoints?

Back

Line Segment

Front

What are lines in a plane that cross at exactly one point?

Back

Intersecting Lines

Front

What angle measures 180 degrees?

Back

Straight Angle

Front

What do we call angles that are less than 90 degrees?

Back

Acute Angles

Front

What do we call angles that are more than 90 degrees but less than 180 degrees?

Back

Obtuse Angles

Front

What is an angle that measures exactly 90 degrees?

Back

Right Angle

Front

What do we call lines that never meet and are always the same distance apart?

Back

Parallel Lines

Front

What do we call lines that intersect to form right angles?

Back

Perpendicular Lines

Front

What is a part of a line that starts at a point and extends infinitely in one direction?

Back

Ray