Answer :

sqdancefan

1.

  1. 180° . . . . linear angles are supplementary
  2. 3x . . . 180°
  3. 180°-3x
  4. PLM . . . . an exterior angle of a triangle is equal to the sum of the opposite interior angles
  5. 2x+72° . . . x
  6. 27°

2.

  1. CAB . . . . alternate interior angles where a transversal crosses parallel lines are congruent
  2. ACB . . . . the sum of angles of a triangle is 180°
  3. 3x . . . 180°
  4. 27°

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