Practice Page
Directions: Read carefully. Choose the best answers.

1.
Which of the following diagrams could possibly show an angle rotation of 1 radian on the unit circle?
  
Choose:
 
rpic4
rpic3
rpic1
rpic2

 

 

2.
Convert rr radians to degrees.
teen94

Choose:
 
30º
45º
60º
75º

 

 

3.
Convert 120º to radian measure.
teen98
Choose:
 
rad33
rad34
rad35
rad36

 

 

4.
Convert rad37 to degrees.
teen92
Choose:
 
-288º
-124º
-72º
-60º

 

 

5.
Convert 135º to radian measure.
teen910
Choose:
 
rad5a
rad5b
rad5c
rad35

 

 

6.
Convert 4 radians to degrees.
teen9

Choose:
 
229.183º
320º
 
146.244º
144.653º

 

 

7.
Convert -30º to radian measure.
teen96

Choose:
 
ra8
ra88
ra888
rad34

 

 

8.
The number of radians in a complete rotation is approximately ____.
teen93

Choose:
 
36
10
6.28
3.14

 

 

9.
In a circle, a central angle of ra9 radians subtends an arc of 3 centimeters.  Find the length, in centimeters, of the radius of the circle.
teen99
Choose:
 
3 cm
6 cm
8 cm
9 cm

 

 

10.
Find, in centimeters, the length of an arc intercepted by a central angle of 4 radians in a circle with a radius of 3.5 cm.
teen7

Choose:
 
14 cm
12 cm
8 cm
1.1 cm


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