A: 70° (angles on a straight line equal to 180°) B: 60° ( vertically opposite angles are equal) C: 70° ( vertically opposite angles are equal) D: 50° (vertically opposite angles are equal) E: 130° ( angles on a straight line equal to 180°) F: 50° ( vertically opposite angles are equal) G: 60° (vertically opposite angles are equal) H: 120° (angles on a straight line equal to 180°) I: 130° (vertically opposite angles are equal) J: 120° (vertically opposite angles are equal)
