Maths-
General
Easy

Question

In the given figure, if P Q R equals 70 to the power of ring operator end exponent then ∣ A B C equals

  1. 110°    
  2. 20°    
  3. 135°    
  4. 70°    

hintHint:

In this question, we have to find the angleABC. Given that AB and PQ are parallel and QR and BC are parallel. Using the prallel lines theorem we can find the required angle.

The correct answer is: 70°



    PQ is parallel to AB and QR is the transversal
    Also, QR is parallel to BC and AB is the transversal.
    angle A B C equals angle Q O B equals angle P Q R = 70 degree
    As angles are alternate interior angles so the angles are equal.

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