2D Shapes - Vocabulary

An exact location in space represented by a dot is a?

• Line
• Point
• Ray
• Line Segment

What is the name of a set of points that form a straight path that goes on in opposite directions without ending?

• Point
• Line
• Line Segment
• Ray

A ray is a(n).........

• exact location in space represented by a dot
• set of points
• line that has an endpoint and goes on forever in one direction
• part of a line between two endpoints

A line segment is a(n)..........

• exact location in space
• set of points
• part of a line between two endpoints
• line that has an endpoint and goes on forever in one direction

A flat surface that goes on forever in all directions is a..........

• plane
• intersecting lines
• line
• point

Perpendicular lines are a specific set of intersecting lines that meet or cross each other to make four right angles.  

• true
• false

All intersecting lines meet or cross at a point to make four right angles.

• true
• false

Parallel lines are lines that......

• meet or cross at a point
• meet or cross at a point to form four right angles
• are the same distance apart and do not intersect
• are the same length

Congruent line segments are lines that........

• meet or cross at a point
• meet or cross at a point to form four right angles
• are the same distance apart and do not intersect
• are the same length

This is formed by two rays with a common endpoint. 

• angle
• vertex
• degree
• right triangle