Segments, Lines and angles

Front

Two rays or line segments that have the same endpoint.

Back

angle

Front

An angle that measures greater than 90 degrees.

Back

obtuse angle

Front

Measures exactly 180 degrees.

Back

straight angle

Front

An angle that measures 90 degrees.

Back

right angle

Front

An angle that measures less than 90 degrees.

Back

acute angle

Front

A plane is named by...

Back

Any 3 non-collinear points on the plane or an uppercase script letter.

Front

Points that lie on the same line are _________.

Back

collinear

Front

How is a line named?

Back

Any 2 points on the line with a line drawn above them, or a lowercase script letter.

Front

How is a line named?

Back

Any 2 points on the line with a line drawn above them, or a lowercase script letter.

Front

What angles measure less than 90 degrees?

Back

Acute Angles