Quiz (1 point)

• if AB ⊥ BC, then m∠ABC = 90
• if AB ⊥ BC, then m∠ABC = 90
• if (m∠XPW = 180) and (m∠YPZ = 180), then m∠YPX = m∠WPZ

• if the following are true:

  • a = b
  • a = c

  then b = c

• 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∠WSX = 180) and (m∠YTZ = 180) and (m∠STZ = m∠TSW), then WX || YZ

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.