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Easy

Question

In the figure, stack B C with bar on top parallel to stack D E with bar on top comma angle A C B equals 60 to the power of ring operator end exponent comma angle A E D equals 80 to the power of ring operator end exponent text  and  end text angle B A C equals 90 to the power of ring operator end exponent. text  Then  end text angle B A E equals?

  1. 20°    
  2. 30°    
  3. 70°    
  4. 110°    

The correct answer is: 70°

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