Lines, Angles, and Triangles

Front

An exact position or location on a line?

Back

point

Front

A line of points that extends continuously in opposite directions.

Back

line

Front

A part of a line with two endpoints?

Back

line segment

Front

A part of a line with one endpoint that extends continuously in only one direction?

Back

ray

Front

Lines that never cross each other and are the same distance apart?

Back

parallel lines

Front

Lines that cross each other at right angles?

Back

perpendicular

Front

Lines that cross each other at acute and obtuse angles?

Back

intersecting

Front

An ___________ is formed when two rays meet at a common point.

Back

angle

Front

Angles that are less than 90 degrees?

Back

acute angles

Front

Angles that are exactly 90 degrees?

Back

right angles