The answer to this question is A. I marked it as D because:
- The information provided allows us to only infer that angles ∠BAC, ∠ABC, ∠BCA are all 60.
- Apart from the above nothing else can be deducted.
Am I missing something here?
So angle DAC and DCA are less than 60 degrees as they are less than the angle of equilateral triangle as shown in the figure. So, the sum of angles DAC and DCA is less than 120 degree, thus angle ADC is greater than 60 degree.
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Makes sense! Thanks! 