Which always yields a cross section that is the same shape and size as the base of the figure? a triangular pyramid when sliced parallel to its base a triangular pyramid when sliced perpendicular to its base a triangular prism when sliced parallel to its base a triangular prism when sliced perpendicular to its base

Which statement explains how you could use coordinate geometry to prove the opposite sides of a quadrilateral are congruent? a. use the slope formula to prove the slopes of the opposite sides are the same. b. use the slope formula to prove the slopes of the opposite sides are opposite reciprocals. c. use the distance formula to prove the lengths of the opposite sides are the same. d. use the distance formula to prove the midpoints of the opposite sides are the same.