Circle Quiz Review

What is the length of the radius of the circle?

Find the circumference of the circle

• 50.24 yd

• 25.12 yd

• 11.14 yd

Find the circumference of the circle

• 18.84 cm

• 75.36 cm

• 37.68 cm

Find the circumference of the circle whose radius is 4 in

• 12.56 in

• 25.12 in

• 50.24 in

What two formulas can you use to find the circumference?

• C = π·d

• C = π·r²

• C = 2·π·r

• C = d²

Jayne has a very large circular lollipop that has a circumference of 25.12 inches. What would the diameter of Jayne’s lollipop be? Use π = 3.14.

• 4 in.
• 8 in.
• 12 in.
• 16 in.

• minor arc

• major arc

• semicircle

• half circle

• minor arc

• major arc

• semicircle

• half circle

Does this picture show the diameter or radius of a circle?

• Diameter

• Radius

What is the line that goes from the center of a circle to any point on the circle?

• Diameter

• Circumference

• Chord

• Radius