Mathematics

State Euclid's fifth postulate. Using the same write the pairs of angles, having the Sum less than $$180^{o}$$. (from the figure given)


SOLUTION
If a straight line falling on two straight lines makes the interior angles on the same side of it taken together less than two right angles I.e, $$180^{\circ}$$ , then the two straight lines, if produced indefinitely meet on that side on which sum of angles is less than two right angles.

Here, $$\angle3 + \angle6 < 180^{\circ}$$
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