Trigonometry : Unit Circle and Radians

Study concepts, example questions & explanations for Trigonometry

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Example Questions

Example Question #25 : Circles

 radians is equivalent to how many degrees?

Possible Answers:

Correct answer:

Explanation:

1 radian is equal to  degrees. Using this conversion factor,

.

Example Question #421 : Trigonometry

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 #201 : New Sat Math Calculator

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

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 #425 : Trigonometry

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 #422 : Trigonometry

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 #43 : Unit Circle And 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 #423 : Trigonometry

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 #201 : New Sat Math Calculator

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 #431 : Trigonometry

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, 

 

.

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