Summary
With the help of this activity, we have learnt that:
If a straight line intersects two other straight lines in such a manner that the sum of the two interior angles it makes with them - on the same side - is less than two right angles, then the two straight lines it intersects (when produced indefinitely) will meet on the same side where the sum of the interior angles is less than two right angles.
This also implies that two distinct straight lines cannot intersect at more than one point.
