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This is a really trivial comment in my notes but for some reason I'm not seeing it...

The following image demonstrates the perpendicular distance from an origin to the line of action of the force given as x*sin(

__x__,

__F__). So the moment, M = f*x*sin(

__x__,

__F__) which I understand.

But why is it sin? Why not cos or tan? I understand trig, I just can't see how this is working. Maybe because of the positioning of the angle?

Thanks in advance