Question: In a triangle, which is the side opposite to the obtuse angle?
A ) the greatest
B ) either the greatest or the smallest
C ) the smallest
D ) neither the greatest nor the smallest
Steps to derive
1 An obtuse angle is the greatest angle in the triangle.
[Triangle-Angle-Sum theorem.]
2 Side opposite to the greatest angle i.e., the obtuse angle is the greatest.
Hence the right answer is Option A
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