Angles

What is an angle?

• An angle is made up of two rays that share one endpoint called a vertex.

• An angle is a straight line.

• An angle is a vertical line.

What are angles measured in?

• Centimeter

• Degrees

• Inches

This picture represents what type of angle?

• Right Angle

• Acute Angle

• Obtuse Angle

This picture represents what type of angle?

• Acute Angle

• Right Angle

• Obtuse Angle

What type of angle is shown?

• Obtuse

• Right

• Acute

Name this angle.

• Acute Angle

• Obtuse Angle

• Right Angle

A right angles measures:

• 90 degrees

• Less than 90 degrees

• Greater than 90 degrees

An acute angle measures:

• 90 degrees

• Less than 90 degrees

• Greater than 90 degrees

Identify all the ACUTE angles...

• 37^o

• 23^o

• 175^o

• 135^o

Identify all the OBTUSE angles...

• 187^o

• 145^o

• 122^o

• 203^o