Who ever gets it right first gets brainliest Five sisters are busy. Ann is reading, Rose is cooking, Katie is playing chess, and Mary is doing laundry. What is the fifth sister doing?

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.