Quiz (1 point)

• m∠ABC = m∠CBA
• if (m∠XPW = 180) and (m∠YPZ = 180), then m∠XPY = m∠WPZ

• if the following are true:

  • a = b
  • a = c

  then b = c

• if the following are true:

  • a = b
  • a = c

  then b = c

• if m∠ABC = x, then m∠CBA = x
• if m∠ABC = x, then m∠CBA = x
• if (m∠WSX = 180) and (m∠YTZ = 180) and (m∠WST = m∠STZ), then XW || ZY

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.