Introduction to Euclid's Geometry G9

Take a notebook and a pen, and draw a point on it. Now, measure the point that you've drawn. Did you get an answer? No? It's because the point is not actually a geometrical figure. What we draw is an indicator, not a figure. Isn't this interesting? Want to know more such interesting facts? Let's see what Euclid has to say about this, in this chapter.