Practice: Circle Arc Length

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 length of the arc.

• 31.42cm

• 15.71cm

• 282.74cm

• 23.56cm

When she is outdoors, Tasha, the dog, is tied to a stake in the center of a circular area of radius 24 feet. The angle between her dog house and her favorite hydrant is 165 degrees.  What is the length of the arc from her dog house to the hydrant, following minor arc DG, to the nearest foot.

• 40
• 35
• 55
• 69

How many degrees are in a circle?

• 90
• 180
• 270
• 360

What type of arc is arc EC?

• Major
• Minor
• Semi-circle
• Radius

What type of arc is arc ABD?

• Major
• Minor
• Semi-circle
• Diameter

• 5.50 cm
• 11.00 cm
• 0.39 cm
• 141.37 cm

• 1.5 units
• 18.85 units
• 4.71 units
• 200 units

Find the arc length of arc AB.

• 12.57 units
• 75.40 units
• 24 units
• 125.66 units

An arc is a smaller piece of the...

• Chord
• Center
• Circumference
• Radius