ANGLES, LINES & PARALLELISM

Which of the following is correct?

• a = 126°

  Reason: corresponding angles

• a = 126°

  Reason: alternate angles

• a = 64°

  Reason: corresponding angles

• a = 64°

  Reason: alternate angles

Which of the following is correct?

• a = 131°

  Reason: corresponding angles

• a = 131°

  Reason: co-interior angles

• a = 49°

  Reason: corresponding angles

• a = 49°

  Reason: alternate angles

Which of the following is correct?

• a = 99°

  Reason: co-interior angles

• a = 81°

  Reason: co-interior angles

• a = 99°

  Reason: corresponding angles

• a = 81°

  Reason: corresponding angles

Which of the following is correct?

• a = 50°

  Reason: co-interior angles

• a = 130°

  Reason: alternate angles

• a = 130°

  Reason: corresponding angles

• a = 50°

  Reason: alternate angles

Which of the following is correct?

• a = 72° (vertically opposite angles)

  b = 72° (corresponding angles)

• a = 72° (vertically opposite angles)

  b = 108° (co-interior angles)

• a = 72° (vertically opposite angles)

  b = 72° (co-interior angles)

• a = 72° (vertically opposite angles)

  b = 108° (corresponding angles)

Which of the following is correct?

• a = 65° (vertically opposite angles)

  b = 115° (co-interior angles)

• a = 65° (alternate angles)

  b = 115° (co-interior angles)

• a = 115° (vertically opposite angles)

  b = 65° (co-interior angles)

• a = 115° (alternate angles)

  b = 65° (co-interior angles)

Which of the following is correct?

• a = 45° (angles on a straight line)

  b = 45° (corresponding angles)

• a = 45° (angles on a straight line)

  b = 135° (corresponding angles)

• a = 135° (co-interior angles)

  b = 135° (corresponding angles)

• a = 45° (corresponding angles)

  b = 135° (corresponding angles)

Which of the following is correct?

• a = 106° (co-interior angles)

  b = 74° (corresponding angles)

• a = 106° (co-interior angles)

  b = 106° (co-interior angles)

• a = 74° (co-interior angles)

  b = 106° (corresponding angles)

• a = 74° (co-interior angles)

  b = 106° (co-interior angles)

Which statement connecting the unknowns is correct?

• x = y (vertically opposite angles)

• x = y (corresponding angles)

• x + y = 180° (co-interior angles)

• x = y (alternate angles)

Which statement connecting the unknowns is correct?

• x = y (co-interior angles)

• x = y (corresponding angles)

• x + y = 180° (co-interior angles)

• x = y (alternate angles)