MathematicsIn the given figure, the measure of ∠ABC   is:

In the given figure, the measure of ABC   is:


  1. A
    80 °  
  2. B
    20 °  
  3. C
    100 °  
  4. D
    60 °   

    Fill Out the Form for Expert Academic Guidance!l



    +91



    Live ClassesBooksTest SeriesSelf Learning



    Verify OTP Code (required)

    I agree to the terms and conditions and privacy policy.

    Solution:

    Given, a triangle ABC.
    From figure,
    ACB+ 100 ° = 180 °   [Linear angles]
    ACB= 180 ° 100 ° ACB= 80 °  
    Also,
    BAC= 20 °   [Vertically opposite angle]
    So, in triangle ABC, by angle sum property;
    BAC+ACB+ABC= 180 °  
    ABC= 180 ° 80 ° 20 ° ABC= 80 °  
    Thus, the measure of ABC   is 80 ° .  
    Hence, option (1) is correct.
     
    Chat on WhatsApp Call Infinity Learn

      Talk to our academic expert!



      +91


      Live ClassesBooksTest SeriesSelf Learning




      Verify OTP Code (required)

      I agree to the terms and conditions and privacy policy.