Lines and Angles Review

Front

Two lines that are always the same distance apart and never intersect are called __________________.

Back

Parallel Lines

Front

What is the name of the figure that has a starting point and extends infinitely in one direction?

Back

Ray

Front

What is the name of the figure that has two endpoints?

Back

Line Segment

Front

What is the name of the figure that has no length, width, or height?

Back

Point

Front

An angle that measures less than 90 degrees is called __________________.

Back

Acute Angle

Front

An angle that measures exactly 90 degrees is called __________________.

Back

Right Angle

Front

An angle that measures more than 90 degrees but less than 180 degrees is called __________________.

Back

Obtuse Angle

Front

What do we call two lines that intersect to form right angles?

Back

Perpendicular Lines

Front

What is the sum of the angles in a triangle?

Back

180 degrees

Front

If two angles are complementary, what is the sum of their measures?

Back

90 degrees