Make an inital triangle from a vector, two points, to get a 3rd point and then on around the 1st, central point. I wish to use the cross product to detect when the fan has gone around and is overlapping.
Cross Product: 403.3520696713259
ax; 13.990259761108469, by: 21.194853807410368
ay: 14.409188092603799, bx: -7.414058212049568
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