In this video, I'll show you how to construct a perpendicular line that goes through a point on the line. So for this, we need a different procedure. I'll draw a circle from point A on the line at some arbitrary size. And then I'll label this point B, and the opposite point C. Then I'll draw another circle from B. This needs to be big enough so that it goes beyond point A. I'll label this point D. Now if you're using a compass, you would draw another circle from point C with exactly the same radius as the previous and you'd have the circle immediately. If we're using the app, we have to use this tool to copy the distance from B to D. And then we'll start from C. We'll drop that in right here.

Optionally, we could construct the Full Circle, which is what you would do with a compass. I'll label this as point E. Now I'll draw a line connecting na. And that will be perpendicular to the red line. I'll make this line read and just verify that it's perpendicular. Indeed it is. I'll pan over here and place a new point on the original line, which I'll label as F. And then if we're using the digital technique, please the perpendicular tool and then drag along the red line till you reach F and then lift your pointer.

And that's all there is to it. I'll just make that red. And again verify that these two lines are perpendicular. And indeed they are So there you have it different ways of drawing perpendicular lines through a point on the original line.