200
Which is always true?
a. If a parallelogram is a rhombus, it is a square.
b. If a parallelogram is a quadrilateral, it is a rectangle.
c. If a parallelogram is a square, it is a rectangle.
d. If a parallelogram is a rectangle, it is a rhombus.
What is c. If a parallelogram is a square, it is a rectangle.