Hello everybody I want to create a fillet curve with a radius of 40 feet using the “Circle 3PT” node, but for this I need to find the point C. Can it be found using the triangle method? Thank you.

Is this what you want?

Fillet curve-b.gh (12.4 KB)

@akilli is using a nice approach that is close to how you would do it with circle and pen on paper…

another approach would be to use vectors, calculate length (Pythagoras) and Angles…

Arc_point_point_radius.gh (9.9 KB)

One more option: Fillet curve_V2.gh (13.6 KB)

Thank you.

Thank you