If I have a line segment that starts at origins and is parallel to the x-axis, how do I work out the position on the X axis of x if it is rotated by say 45 degrees?
I know the degree and I know the length of the line.. so I use what formula?
Is it cos(angle) / length?
http://en.wikipedia.org/wiki/Rotation_%28mathematics%29
This article provides the complete detail of your requisite