Circumference & Arc Length

What is the circumference of this circle ?

• 3.14 cm 
• 37.68 cm
• 24 cm
• 68.4 cm

A circular swimming pool is 21 feet in diameter.
How many feet around is the pool?

• 10.5 ft
• 42 ft
• 65.94 ft
• 131.95 ft

Find the circumference (to the nearest whole number)

• 88 in
• 44 in
• 116 in
• None of the above

What is the circumference of a dinner plate with a radius of 4.5 inches?

• 28.26 inches
• 27.26 inches
• 29.26 inches
• 30.26 inches

What is the circumference of a 12 inch (diameter) pizza?

• 37.68 inches
• 36.68 inches
• 35.68 inches
• 34.68 inches

Find the arc length of the bolded arc in the picture.

• A
• B
• C
• D

In circle O, the radius is 4, and the measure of minor arc AB is 120 degrees. Find the length of minor arc AB to the nearest integer.

• 5
• 9
• 8
• 6

Find the arc length.  Leave your answer in terms of π.

• 7/4π cm
• 7/2π cm
• 1/5π cm
• 45π cm

Find the arc length of the bolded arc.

• A
• B
• C
• D

What is the arc length of minor arc AB?

• 5.23
• 103
• 33.33
• 50