The area of a rhombus equals half the sum of the diagonals

Assemble the proof by dragging tiles to the statements and reasons column

Express in the simplest form: (x^2+9x+14/x^2-49) / (3x+6/x^2+x-56)

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.