11.1

Daniel wants to buy cookies for her friend. The
radius of a cookie is 5 inches. What is the cookie’s 
circumference?

• 10 in
• 2.5 in
• 15.7 in
• 31.4 in 

What is the distance around a circle?

• Circumference
• Area
• Diameter
• Radius

FIND THE ARC LENGTH OF THE BOLDED ARC

• 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

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

FIND THE ARC LENGTH OF THE BOLDED ARC

• A
• B
• C
• D

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

What is 150° in radians?

• 5π/6

• 7π/6

• 5π/4

• π/6

What is 45° in radians?

• π/2

• π/6

• π/4

• 3π/4

Convert π/3 radians to degrees

• 60⁰
• 30⁰
• 90⁰
• 45⁰

Tags

CCSS.HSF.TF.A.1