Calculating angle when sine is known

How can I calculate the angle in degrees wh开发者_如何转开发en Math.Sin is known? Asine will work? and multiply it by 180 and divide by pi?

Yes, but remember that 135 degrees has the same value for Sin(ang) as 45 degrees does. So your answer is not unique.

That is correct.

For more information, read this : http://www.teacherschoice.com.au/maths_library/angles/angles.htm