Name: 
 

Arc Length 2


 1 
In circle O, the length of radius mc001-1.jpg is 5 centimeters and the length of mc001-2.jpg is 5 centimeters.  The measure of mc001-3.jpg is

mc001-4.jpg
a)
1 radian
c)
greater than 60°
b)
mc001-5.jpg radians
d)
60°
 

 2 
A dog has a 20-foot leash attached to the corner where a garage and a fence meet, as shown in the accompanying diagram.  When the dog pulls the leash tight and walks from the fence to the garage, the arc the leash makes is 55.8 feet.

mc002-1.jpg

What is the measure of angle q between the garage and the fence, in radians?
a)
0.36
c)
3.14
b)
2.79
d)
160
 

 3 
A wedge-shaped piece is cut from a circular pizza.  The radius of the pizza is 6 inches.  The rounded edge of the crust of the piece measures 4.2 inches.  To the nearest tenth, the angle of the pointed end of the piece of pizza, in radians, is
a)
0.7
c)
7.0
b)
1.4
d)
25.2
 



 
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