Question
Mathematics Question on Trigonometric Functions
The degree measure of 32π is equal to
A
5∘30′20′′
B
5∘37′30′′
C
5∘37′20′′
D
4∘30′30′′
Answer
5∘37′30′′
Explanation
Solution
we know that π radians is equivalent to 180 degrees.
So,32π radians can be converted to degrees as follows:
(32π)×(π180)=32180 degrees=5.625 degrees
Since 0.625 degrees is equal to 0.625×60=37.5 minutes, we have:
5.625 degrees = 5 degrees 37.5 minutes.
To express the minutes in terms of minutes and seconds, we can calculate 0.5×60=30 seconds
Therefore, the degree measure of 32π is equal to 5 degrees 37 minutes 30 seconds.
Hence, the correct option is (B) 5∘ 37′ 30′′.