calculate x,y positions in circle every n degrees I am having trouble trying to work out how to calculate the $(x,y)$ point around a circle for a given distance from the circles center. Variables I do have are: constant distance/radius from center ($r$) the angle from $y$ origin I basically need a point ($x$ and $y$) around a circle every $18$ degrees. Excuse me if this is a very basic question but math is not my strong point :/ Ta John

x = radius * cos(angle)
y = radius * sin(angle)


Inverse Y-axis:


x = radius * sin(angle)
y = radius * -cos(angle)


If radians is used then


radian = angle * 0.0174532925


and


x = radius * cos(radian)
y = radius * sin(radian)


Radian is the standard unit of angular measure, any time you see angles, always assume they are using radians unless told otherwise.