1) A parallelogram has six sides.
False, because a parallelogram has four sides.
2) Opposite sides of a parallelogram are parallel.
True, this is part of the definition of a parallelogram.
3) A parallelogram can have one pair or two pairs of parallel sides.
False, the parallelogram must have two pairs of parallel sides.
4) All sides of a parallelogram have the same length
False, the sides have the same length in pairs.
5) All angles of a parallelogram have the same measure.
False, the angles have the same measure in pairs.
