Review for Finals 3: Measure & Class. Angles; ID Polygons

Front

What is a straight angle?

Back

An angle that measures 180 degrees.

Front

How many sides does a decagon have?

Back

A decagon has 10 sides.

Front

What is the measure of an angle that is 123 degrees?

Back

123 degrees.

Front

What is a heptagon?

Back

A heptagon is a polygon with 7 sides.

Front

What is the measure of an angle that is 21 degrees?

Back

21 degrees.

Front

What is an acute angle?

Back

An angle that measures less than 90 degrees.

Front

What is a right angle?

Back

An angle that measures exactly 90 degrees.

Front

What is an obtuse angle?

Back

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

Front

What is a polygon?

Back

A closed figure with three or more straight sides.

Front

How many sides does a pentagon have?

Back

A pentagon has 5 sides.