Quiz (1 point)

• a = a
• if M is the midpoint of line AB, then m∠AMB = 180
• if AB ⊥ BC, then ∠ABC is a right angle
• if ∠ABC is a right angle, then m∠ABC = 90
• if m∠ABC = 180, then ∠ABX and ∠XBC are supplementary
• if ∠ABC and ∠DEF are supplementary, then (m∠ABC) + (m∠DEF) = 180

• if the following are true:

  • a + b = c
  • b = d

  then a + d = c

• if a + 90 = 180, then a = 90

• if the following are true:

  • a = c
  • b = c

  then a = b

• if m∠ABC = m∠XYZ, then m∠XYZ = m∠CBA
• if M is the midpoint of line AB, then distance AM = distance MB
• if distance AB = distance CD, then distance AB = distance DC
• if (distance AB = distance DE) and (m∠ABC = m∠DEF) and (distance BC = distance EF), then △ABC ≅ △DEF
• if △ABC ≅ △DEF, then distance CA = distance FD

Please write your proof in the table below. Each row should contain one claim. The last claim is the statement that you are trying to prove.

Step	Claim	Reason (optional)	Error Message (if any)
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