Geometry Vocabulary

Which of the following definitions best describes a "point"?

• A specific location and is drawn as a dot.

• A series of points joined together that extend in opposite directions forever.

• The point where the two rays meet in an angle.

• A line that starts at a given point and goes off in one direction without stopping.

What is a "line"?

• A specific location and is drawn as a dot.

• A series of points joined together that extend in opposite directions forever.

• The point where the two rays meet in an angle.

• A line that starts at a given point and goes off in one direction without stopping.

What is the definition of a "vertex"?

• A specific location and is drawn as a dot.

• A series of points joined together that extend in opposite directions forever.

• The point where the two rays meet in an angle.

• A line that starts at a given point and goes off in one direction without stopping.

Which of the following best describes a "ray"?

• A specific location and is drawn as a dot.

• A series of points joined together that extend in opposite directions forever.

• The point where the two rays meet in an angle.

• A line that starts at a given point and goes off in one direction without stopping.

What is a "line segment"?

• A specific location and is drawn as a dot.

• A series of points joined together with a starting and ending point.

• The point where the two rays meet in an angle.

• A line that starts at a given point and goes off in one direction without stopping.

Which of the following definitions best describes an "angle"?

• A specific location and is drawn as a dot.

• A series of points joined together that extend in opposite directions forever.

• 2 rays that share the same starting point.

• A line that starts at a given point and goes off in one direction without stopping.

What is a "right angle"?

• An angle that measures less than 90°.

• The angle formed when the 2 rays meet is perfectly square or 90°.

• A specific location and is drawn as a dot.

• A series of points joined together that extend in opposite directions forever.

Which of the following best describes an "acute angle"?

• An angle that measures less than 90°.

• The angle formed when the 2 rays meet is perfectly square or 90°.

• A specific location and is drawn as a dot.

• A series of points joined together that extend in opposite directions forever.

What is an obtuse angle?

• An angle that measures anywhere between 91° and 180°

• An angle that measures exactly 90°

• An angle that measures less than 90°

• An angle that measures exactly 180°

What are parallel lines?

• Lines that have no points in common and never cross

• Lines that cross each other at right angles

• Lines that form a triangle

• Lines that intersect at one point