Relate Angles to Fractional Parts of a Circle

What fractions of the circle the angle cuts out?

• 1/4

• 3/4

• 12/12

• 1/2

The angle represent?

• 1/4

• 3/4

• full turn

• 1/2

Tell what fraction of the circle the angle cuts out.

• 1/4

• 3/4

• 1/12

• 9/12

The angle on the circle represent?

• 1/4 turn

• full turn

• 3/4 turn

• 1/2 turn

What fraction if the circle the angel cuts out?

• 1/2

• 3/4

• 1/4

• 12/12

Define Obtuse

• Less than 90
• Exactly 90
• Greater than 90 and less than 180
• Exactly 180

Define Acute

• Less than 90
• Exactly 90
• Greater than 90 and less than 180
• Exactly 180

Define Right Angle

• Less than 90
• Exactly 90
• Greater than 90 and less than 180
• Exactly 180

Define Straight

• Less than 90
• Exactly 90
• Greater than 90 and less than 180
• Exactly 180

What is the measurement of a right angle?

• 70
• 80
• 90
• 180