Why do you need the Pythagorean theorem to find the surface area of a pyramid? (Site 1)

Volume of cylinder with a radius of 8cm and height of 25 cm

State one method by which you can recognize a perfect square trinomial.

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.