Practice with
Arc Length and Radian Measure
Topic Index | Algebra2/Trig Index | Regents Exam Prep Center


Choose the best answer to the following questions.
Grab your calculator.

1.

Convert radians to degrees.

Choose:

30º
 45º
60º

 

 

2.

Convert 120º to radian measure.

Choose:



 

 

3.

Convert to degrees.

Choose:

-288º
 -124º
 -72º

 

 

4.

Convert 470º to radian measure.

Choose:



 

 

5.

Convert 4 radians to degrees.

Choose:

229.183º
 320º
 146.244º

 

 

6.

Convert -245º to radian measure.

Choose:



 

 

7.

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

Choose:

36
 10
 6.28
 3.14


 

8.

In a circle, a central angle of radians subtends and arc of 3 centimeters.  Find the length, in centimeters, of the radius of the circle.

Choose:

3 cm
 6 cm
8 cm
 9 cm