Quiz (1 point)

• if the following are true:

  • a = b
  • b = c

  then a = c

• if the following are true:

  • a = b
  • b = c

  then a = c

• if (m∠XYZ = m∠ZWX) and (m∠WXY = m∠YZW), then WXYZ is a parallelogram
• if (m∠ABC = m∠CDA) and (m∠BCD = m∠DAB), then quadrilateral ABCD is convex
• if quadrilateral WXYZ is convex, then (((m∠WXY) + (m∠XYZ)) + (m∠YZW)) + (m∠ZWX) = 360

• if the following are true:

  • a = b
  • b = c

  then a = c

• if the following are true:

  • a + b = c
  • d = b

  then a + d = c

• if a = b, then b = a

• if the following are true:

  • x = y
  • (a + x) + c = f

  then (a + y) + c = f

• if a = b, then c + b = c + a

• if the following are true:

  • (a + b) + c = d
  • a = e

  then (e + b) + c = d

• if ((a + a) + a) + a = 360, then a = 90

• if m∠ABC = 90, then ∠ABC is a right angle
• if (ABCD is a parallelogram) and (∠ABC is a right angle), then ABCD is a rectangle

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.