Question

given three distinct point in a plane,how many line can be drawn by joining them?\

Answer 1

If the points are co-linear then only 1 line can be drawn.

If points are not co-linear then:

for a line to be drawn we need two points, therefore

Selecting 2 points from the given 3 points : ³C²=2
Hence, number of lines that can be drawn = ³C² = 3