Finding Arc Measures and Arc Length

If the measure of arc ABC = 210°, what is the measure of arc AC?

• 150°

• 100°

• 210°

• 105°

The measure of an arc is equal to the measure of the central angle that intercepts the arc. Find x.

• x = 160

• x = 40

• x = 80

• x = 360

FIND THE ARC LENGTH OF THE BOLDED ARC

• A

• B

• C

• D

FIND THE ARC LENGTH OF THE BOLDED ARC

• A

• B

• C

• D

What is the length of arc BB'?

Alison is jogging on a circular track that has a radius of 140 feet.  She runs along the track from point R to point N, a distance of 230 feet. Find to the nearest degree, the measure of minor arc RN.

• 47

• 74

• 94

• 123

Alison is jogging on a circular track that has a radius of 140 feet.  She runs along the track from point R to point N, a distance of 230 feet. Find to the nearest degree, the measure of minor arc RN.

• 47

• 74

• 94

• 123

Here we have a circle with radius 1 centered at the point O. The arc length of arc AB is π/3. What is the measure of angle ACB?

• π/6 radians

• π/3 radians

• π/2 radians

• π/8 radians

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

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