Circumference, Area, Arc Length & Area of Sector(In Degrees)

Which circles show the radius? Select all that apply

• A

• B

• C

• D

• E

If my radius is 10ft, what is my diameter?

• 20ft

• 5ft

• 31.4ft

• 62.8ft

Which circles show the diameter? Select all that apply

• A

• B

• C

• D

• E

A line that links two points on the circumference of a circle is called?  

• center
• diameter
• chord

• radius
• Circumference

A line that goes from one end of the circle to the other and crosses the center point.  

• center
• diameter
• chord

• radius
• Circumference

A ____ angle is an angle whose vertex is at the center of a circle.

• supplementary

• complimentary

• central

• obtuse

What is the distance around a circle?

• Circumference
• Area
• Diameter
• Radius

What is the diameter?

• 8
• 16
• 10
• 4

What is the radius?

• 18

• 72

• 38

• 14

What two formulas can you use to find the circumference?