need help!! i need to find the midpoint of EF, FG, GH, and EH! And if you could answer #25. That would be tons of help too!!!! i’m very confused. Thank u!

Answer:
the equation to solve for the midpoint is : (x1 + x2/2 , y1 +y2/2)
to solve the length all you use is Pythagorean theorem and solve for the longest side