Which statement is true?

a. all parallelograms are squares

b. a rhombus is a parallelogram

c. all rhombuses are square

d. a trapezoid has two sets of parallel lines

If lmn=xyz, which congruences are true by cpctc? check all that apply

Which of the following equations is of the parabola whose vertex is at (4, 3), axis of symmetry parallel to the y-axis and focus at (4, -3)? a.) y+3=1/24 (x+4)^2 b.)y-3=-1/24 (x-4)^2 c.)x-4=-1/24 (y-3)^2

Either enter an exact answer in terms of \piπ or use 3.143.14 for \piπ and enter your answer as a decimal.