- First take a triangle a given in the figure above.
- Then, extend line MN to L to make it easy to understand.
- Then as we know that sum of angle of triangle is 180 degree.
- And as we also know that PN is pe
- Perpendicular to MN (by construction) or(as it given in question.
- Then angle N is 90 so other two angles obviously lesser than 90.
- So, angle N is greater
- Hence as we know that side opposite to larger angle is longer.
- So PM is greater than other two sides MN, PN.
- Hence, our question is proved.
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Written on Feb. 18, 2020, 8:36 p.m.