MCQ
- A115º
- B50º
- CNone of these
- D60º
✓
Answer
- 50º
Soluton:
C = 180º - 115º = 65º AB = AC And hence $\angle\text{B} =\angle\text{C} = 65^\circ.$
Then A = 180º - 2 × 65º = 50º
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