6.7 Intro to Circles

What is line AD called?

• Area

• Circumference

• Radius

• Diameter

Is the red line a radius or diameter of the circle?

• Radius
• Diameter

Is the red line a radius or diameter of the circle?

• Radius
• Diameter

What is the Radius of a Circle if the Diameter is 10

• 2

• 4

• 5

• 10

What is the distance around the outside of the circle called?

• Area

• Diameter

• Circumference

• Chord

What is the radius?

• 18
• 72
• 38
• 14

What is line CB called?

• Circumference

• Diameter

• Radius

• Chord

What is the diameter of a circle with a radius of 8 in?

• 4 in
• 16 in
• 32 in

What is this symbol called?

• pi

• sigma

• radius

• omega

What is the approximate numerical value of this sign?

• 3.11

• 3.14

• 4.13

• 6.28