Given trapezoid pqrs, which of the following must be true?
both pairs of opposite sides are parallel.
the legs are congruent to each other.
one pair of opposite sides must be congruent.
one pair of opposite sides must be parallel.

Fill in the blank 1. a rhombus is a rectangle a) always b) sometimes c) never 2. a square is a quadrilateral a) always b) sometimes c) never 3. a trapezoid is a kite a) always b) sometimes c) never 4. a quadrilateral is a kite a) always b) sometimes c) never 5. a square is a rhombus a) always b) sometimes c) never 6. a parallelogram is a rectangle a) always b) sometimes c) never