Trigonometry : Radians and Conversions

Study concepts, example questions & explanations for Trigonometry

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Example Questions

Example Question #31 : Circles

Convert  into radians.

Possible Answers:

Correct answer:

Explanation:

Recall that there are 360 degrees in a circle which is equivalent to  radians. In order to convert between radians and degrees use the relationship that,

Thus, in order to convert from degrees to radians you need to multiply by .

So in this particular case, 

.

Example Question #591 : New Sat

Convert  into radians.

Possible Answers:

Correct answer:

Explanation:

Recall that there are 360 degrees in a circle which is equivalent to  radians. In order to convert between radians and degrees use the relationship that,

.

Thus, in order to convert from degrees to radians you need to multiply by .

So in this particular case, 

.

Example Question #34 : Radians

Convert  into radians.

Possible Answers:

Correct answer:

Explanation:

Recall that there are 360 degrees in a circle which is equivalent to  radians. In order to convert between radians and degrees use the relationship that,

.

Thus, in order to convert from degrees to radians you need to multiply by .

So in this particular case, 

 .

Example Question #31 : Radians And Conversions

Convert  into degrees.

Possible Answers:

Correct answer:

Explanation:

Recall that there are 360 degrees in a circle which is equivalent to  radians. In order to convert between radians and degrees use the relationship that,

Therefore, in order to convert from radians to degrees you need to multiply by .

So, 

.

Example Question #36 : Radians

Convert  into degrees.

Possible Answers:

Correct answer:

Explanation:

Recall that there are 360 degrees in a circle which is equivalent to  radians. In order to convert between radians and degrees use the relationship that,

.

Therefore, in order to convert from radians to degrees you need to multiply by . So in this particular case, 

.

Example Question #37 : Radians

Convert  into degrees.

Possible Answers:

Correct answer:

Explanation:

Recall that there are 360 degrees in a circle which is equivalent to  radians. In order to convert between radians and degrees use the relationship that, .

Therefore, in order to convert from radians to degrees you need to multiply by . So in this particular case, 

 

.

Example Question #38 : Radians

Convert  into degrees.

Possible Answers:

Correct answer:

Explanation:

Recall that there are 360 degrees in a circle which is equivalent to  radians. In order to convert between radians and degrees use the relationship that, .

Therefore, in order to convert from radians to degrees you need to multiply by . So in this particular case, 

.

Example Question #39 : Radians

Convert  into degrees.

Possible Answers:

Correct answer:

Explanation:

Recall that there are 360 degrees in a circle which is equivalent to  radians. In order to convert between radians and degrees use the relationship that, .

Therefore, in order to convert from radians to degrees you need to multiply by .  So in this particular case, 

.

Example Question #31 : Radians And Conversions

Convert  into degrees.

Possible Answers:

Correct answer:

Explanation:

Recall that there are 360 degrees in a circle which is equivalent to  radians. In order to convert between radians and degrees use the relationship that, .

Therefore, in order to convert from radians to degrees you need to multiply by . So in this particular case, 

.

Example Question #41 : Circles

Convert  into radians

Possible Answers:

Correct answer:

Explanation:

Step 1: Recall the formula to change a degree measure into radians:

The formula is: .

Step 2: Plug in the angle:



Step 3: Simplify:

We will use the  and try to reduce the  as much as possible. 

After Dividing by 3:



After dividing by 5:




 is  in radians.

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