Mathematics
Grade-8
Easy

Question

text  If  end text angle a text  is  end text 68 degree text  and  end text angle b text  is  end text 37 degree comma text  what is the measure of  end text angle c ?

  1. 112o
  2. 75o
  3. 143o
  4. 149o

hintHint:

the sum of all the interior angles of a triangle is always 180

The correct answer is: 75o


    the sum of all the interior angles of a triangle is always 180
    We know that;
    angle a= 68 and angle b=37
    angle a +angle b +angle c=180
    68+37+angle c=180
    angle c+105=180
    angle c=180-105
    angle c=75

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