Quadrilaterals

4. Answer each as Always, Sometimes or Never

a) if the diagonals of a quad. are congruent, the quad is a rectangle.

b) If the diagonals of a quad divide each angle into two 45 degree angles, the quad is a square.

c) if a parallelogram is equilateral, then it is equiangular.

d) If two angles of a trapezoid are congruent, then the trapezoid is isosceles.

e) A square is a rhombus

f) A rhombus is a square

g) In a parallelogram, the diagonals are congruent

h) A quad is a parallelogram if all 4 angles are right angles

i) If a parallelogram has ONE right angle, then it is a rectangle.

j) If a quad has TWO right angles, then it is a rectangle.

k) If a quad has exactly two right angles, then it is a trapezoid.

l) If the diagonals of a quad. bisect each other, then the quad is a trapezoid.