Question

6. What is the value of x?
123°
1
3xº

Answer 1

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In the given figure, Angle 3x forms linear pair with Angle 123°, so their sum measures 180°

that is :

• 
  `123 + 3x = 180`

• 
  `3x = 180 - 123`

• 
  `3x = 57`

• 
  `x = (57)/(3)`

• 
  `x = 19`

value of x = 19°