7th Grade Geometry Terms

Has no endpoints, and extends indefinitely on both sides.

• ray

• line segment

• straight line

• angle

Part of a line with two endpoints. It has a length, which is the measure of the distance between its endpoints.

• line segment

• ray

• straight line

• angle

Part of a line drawn from an endpoint and extends indefinitely in one direction.

• line segment

• ray

• straight line

• angle

Three points aligned on a line are called:

• congruent

• adjacent

• vertex

• collinear

two rays that have the same endpoint and extend in opposite directions are called:

• opposite rays

• rays

• adjacent

• collinear

This is formed by two rays having a common endpoint.

• line segment

• rays

• straight line

• angle

The common endpoint of two rays is called its

• linear

• collinear

• vertex

• segment

a 90-degree angle is

• acute

• obtuse

• right

• straight

An angle that is less than 90-degrees?

• acute angle

• obtuse angle

• right angle

• straight angle

An angle that measures greater than 90-degrees?

• acute

• obtuse

• right

• straight