Geometry Vocab Review

An angle whose measure is less than 90 degrees.

• Perpendicular angle

• Acute angle

• Obtuse angle

• Right angle

A straight path extending in both directions indefinitely

• Line segment

• Line

• Ray

• Angle

A line with a single endpoint that extends in ONE direction indefinitely

• Line segment

• Line

• Ray

• Angle

A polygon with 4 sides

• Triangle

• Quadrilateral

• Hexagon

• Pentagon

An angle whose measure is exactly 90 degrees

• Right angle

• Acute angle

• Obtuse angle

• Straight angle

A point where two rays meet to form an angle. OR a point where two sides of a geometric figure meet.

• vertex

• line

• ray

• line segment

Two or more lines that are the same distance apart and will never intersect

• perpendicular lines

• intersecting lines

• parallel lines

• curved lines

An angle whose measure is greater than 90 degrees

• Acute angle

• Obtuse angle

• Right angle

• Perpendicular angle

Intersecting lines that form right angles

• Perpendicular lines

• Parallel lines

• Curved lines

• Acute lines

A plane figure that has 3 or more straight line segments connected to form a closed shape.

• Polygon

• Ray

• Line

• Angle