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(defun finding-c(/ p1 p2 p3 dst segC isegC) (setq p1 (getpoint "\nSpecify first point")) (setq p2 (getpoint p1 "\nSpecify second point")) (command "_pline" p1 p2 "") (setq p3 (getpoint p2 "\nSpecify third point")) (command "_pline" p2 p3 "");;; get the length of the missing segment (setq dst (sqrt (+ (* (distance p1 p2) (distance p1 p2)) ;power 2 (* (distance p2 p3) (distance p2 p3)) ;power 2 ) )) ;;; get the angle of the missing segment (setq raw (/ (distance p2 p3) (distance p1 p2)));;; get tanges (setq p4 (polar p3 (atan raw) dst)) (command "_pline" p3 p4 "") )
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(setq p1 (getpoint "\nSpecify first point")) (setq p2 (getpoint p1 "\nSpecify second point")) (setq p3 (getpoint p2 "\nSpecify third point")) (command "_pline" P1 p2 p3 "C" )
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