Mathematics
Grade9
Easy

Question

The measure of the angle x is  

  1. 26° 
  2. 36°
  3. 85°
  4. 144°

hintHint:

Using sum of angles in a triangle is 180° .solve the equation to find the value of x.

The correct answer is: 36°


    From the above triangle 78° , 66° and x° are the angles.

    (x)° + 78° + 66° = 180° (sum of angles in a triangle)

    x° + 144° = 180°

    x° = 180° - 144° = 36°

    Therefore, the measure of angle x is 36°.

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