Why can't a triangle have a right angle and an obtuse angle?
1 Answer
Dec 24, 2015
It would violate the theorem of the sum of the interior angles of a triangle summing up to
Explanation:
We know that sum of all interior angles of a triangle is
If we assume that one angle is right angle of
Sum of the 2 angles is then
It cannot be possible due to equation (1). (Contradiction).
Therefore our initial assumption of