Geometry Vocab Review

Front

What is a straight angle?

Back

A straight angle is an angle that measures exactly 180 degrees.

Front

What are parallel lines?

Back

Parallel lines are two or more lines that are the same distance apart and will never intersect.

Front

What are perpendicular lines?

Back

Perpendicular lines are lines that intersect at a right angle (90 degrees).

Front

What is an acute angle?

Back

An acute angle is an angle that measures less than 90 degrees.

Front

What is a line segment?

Back

A line segment is a part of a line that has two endpoints.

Front

What is a right angle?

Back

A right angle is an angle that measures exactly 90 degrees.

Front

What is an obtuse angle?

Back

An obtuse angle is an angle that measures more than 90 degrees but less than 180 degrees.

Front

What is a vertex in geometry?

Back

A vertex is a point where two or more lines meet.

Front

What is a triangle?

Back

A triangle is a polygon with three sides and three angles.

Front

What is a quadrilateral?

Back

A quadrilateral is a polygon with four sides and four angles.