Understanding and measuring angles

The sum of the central angles of a circle is ____________.

• 90

• 180

• 270

• 360

How many degrees does a unit angle measure?

• 1 degree
• 10 degrees
• 100 degrees
• 1000 degrees

What is the measure of an angle that forms a straight line?

What is the measure of the shaded part of the circle?

• 180 degrees
• 240 degrees
• 360 degrees
• 120 degrees

Choose the best match for the graph.

• 45^o
• 90^o
• 135^o
• 180^o

Brian cut an extra large round pizza into 8 pieces. Seven of the pieces were eaten. What angle measure of pizza is left?

• 30

• 40

• 45

• 90

How many degrees does  circle have? ______

What fraction of the circle is an 180 degree arc?

How many degrees are in a semicircle?

• 
• 
• 
• 

What is the measure of the shaded part of the circle?

• 180 degrees
• 90 degrees
• 360 degrees
• 40 degrees