Help with solving Trig problem

@Hughes_Tooling wrote:

I want to script drawing the blue teardrop in the image below. Before going down my usual brute force and ignorance method of solving this I wonder if anyone's got any bright ideas. What I want to do is pick the 2 red dots and be able to generate a tangential lead-in for a CNC toolpath.

I guess I can use CurveTangent to get to the centre of the arc then construct the rest from there.

Pasted image740x406 2.94 KB

Thanks Mark

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