ASAP help me am failing math and I need help! Just the congruence theorem and statement on both triangles

If eh = hg and hg=16, find the diameter of k

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.

If each bricks costs and he can only buy one brick how much will it cost him to get the material to put around the outside of his garden?