CIRCUMFERENC

What is the distance around a circle?

• Circumference
• Area
• Diameter
• Radius

Find the circumference of the circle.

• 31.4 cm

• 78.5 cm

• 314 cm

• 15.7 cm

What is the radius?

• 10 in

• 5 in

• 20 in

What is the exact circumference? (in terms of pi)

• $10\pi\$

• $5\pi$

• $20\pi$
  

What is the diameter?

• 6 cm

• 12 cm

• 3 cm

What is the exact circumference? (in terms of pi)

• $6\pi$

• $12\pi$
  

• $3\pi$
  

What is the circumference of this circle?

• 3.14 cm

• 37.68 cm

• 6 cm

• 68.4 cm

What number represents π?

• 31.4

• 4.13

• 3.14

• 34.1

7. If the diameter of a dart board is 22 inches, what is the circumference of the dart board?

• 11 in

• 138.16 in

• 69.08 in

• 34.54 in

What two formulas can you use to find the circumference?

• C = π·d

• C = π·r²

• C = 2·π·r

• C = d²