Question

The figure below shows a parallelogram PQRS:

Answer 1

The flowchart shown below shows the sequence of steps to prove the theorem: Opposite angles of a parallelogram are equal:

Answer 2

Which option best represents x and y?

x = PS is parallel to QR, y = definition of parallelogram
x = PQ is parallel to SR, y = CPCTC
x = PQ is parallel to SR, y = transitive property
x = PS is parallel to QR, y = reflexive property