- Straight Lines
On the screen, we see six lines a(black), b(blue), c(red), d(green), e(pink) and f(dark green). Three lines a, b and c intersect at one point so these three lines are called concurrent lines. The other three lines d, e and f do not pass through this same point.
1. What difference do you observe between set of lines a, b and c & d, e and f?