Unit 5 Review

Which of the following pictures shows an angle?

• A straight line

• A circle

• Two rays meeting at a point

• A square

How many rays form an angle?

• One

• Two

• Three

• Four

In an angle, the point where the two rays meet is called the:

• Side

• Line

• Vertex

• Ray

Look at the image below. Which letter points to the vertex of the angle?

• A

• B

• C

• None of the above

Which of these everyday objects contains an angle?

• A round ball

• A piece of string

• The corner of a book

• A cloud

An angle that measures exactly 90 degrees is called a:

• Acute angle

• Obtuse angle

• Straight angle

• Right angle

An angle that measures less than 90 degrees is called a:

• Right angle

• Obtuse angle

• Straight angle

• Acute angle

An angle that measures exactly 180 degrees is called a:

• Right angle

• Acute angle

• Obtuse angle

• Straight angle

An angle that measures more than 90 degrees but less than 180 degrees is called an:

• Acute angle

• Right angle

• Straight angle

• Obtuse angle

Which type of angle is shown by the hands of a clock at 3:00?

• Acute angle

• Obtuse angle

• Straight angle

• Right angle