In a triangle, sum of two given base angles must satisfy

In a triangle, sum of two given base angles must satisfy
  1. $\angle B + \angle C < 180^{\circ}$
  2. $\angle B + \angle C > 180^{\circ}$
  3. $\angle B + \angle C = 180^{\circ}$
  4. $\angle B = \angle C$

Solution

Otherwise the third angle would be non-positive.

Asked in: MH-SSC-9

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