Circles Circumference and 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 arc length.  Leave your answer in terms of π.

• 7/4π

• 7/2π

• 1/8π

• 45π

Find the length of the arc to 2dp

• 31.42cm

• 15.71cm

• 282.74cm

• 23.56cm

Find the length of the arc to 2dp

• 246.09cm

• 24.61cm

• 123.05cm

• 240.86cm

What does "circumference" mean?

• Space a circle takes up

• Distance around a circle

• Line from one side of a circle to another

• Line from center of circle to side

In circle O, the radius is 4, and the length of minor arc AB is 4.2 feet.  Find the measure of minor arc AB to the nearest degree.

• 90

• 60

• 55

• 113

The distance around the circle (perimeter)

• Circumference

• Area

• Circle

• Length

A segment of the circumference of a circle.

• Arc

• Tangent

• Major Arc

• Tangent

An arc that measures less than 180 degrees

• Minor Arc

• Major Arc

• Arc

• Angle

An arc that measures between 180 and 360 degrees.

• Major Arc

• Minor Arc

• Arc

• Semicircle