Circles Review

What is the diameter?

• 8
• 16
• 10
• 4

What is the measurement around the outside of a circle called?

• Diameter

• Circumference

• Radius

• Center

What is this symbol called?

• pi

• sigma

• radius

• omega

A line segment that connects two points in a circle without passing through the centre

• Radius
• Sector
• Segment
• Chord

What do we call the red line?

• Chord
• Arc
• Diameter
• Segment

How many radians does a circle have?

•   360 degrees
• 2pi radians
• pi radians
• ^{2 radians}

Convert π radians to degrees.

• 90⁰
• 180⁰
• 360⁰
• 60⁰

Convert 150⁰ to radians

• 5π/6
• 3π/4
• 7π/6
• 2π/3

Convert 100⁰ to radians

• 5π/9
• π/2
• 5π/8
• 5π/6

What is 7π/4 radians in degrees?

• 300
• 135
• 315
• 45