Hello, I have 1 segment A and 1 line B How to make perpendiculars from segment A end points to line B - red lines. I need VBA code. Why I need. Because so i find the closest endpoint A to line B. Then segment A will be extended from closest endpoint to intersect with line B Any idea how to find the intersection coordinates X, Y of the continuation of segment A with line B would be gratefully received. Greetings!

If B is a line segment 1. determine the angle of inclination B 2. Temporarily rotate A+B so that B becomes vertical 3. draw a horizontal line through the desired points you have the coordinates of the point (x1,y1), and the second coordinate along the X axis is the position of B(xB,y1) same for the second perpendicular (x2,y2) & (xB,y2) 4. rotate A+B + 2*(perpendiculars) to a negative rotation angle

Both of the tasks you describe - drawing the perpendicular lines and extending one line to intersect with another - can be done directly using Dynamic guides and object snaps.