Prove: The segment joining the midpoints of the diagonals of a trapezoid is parallel to the bases.
2 answers:
M(b/2 ,c/2 )
Midpoint of BD=((a+d)/2 ,c /2 )
slope of AB = 0
Slope of MN =((c/2-c/2)/ ((a+d)/2-c/2 ))=0
M = (d/2, c/2)
N = (a+b/2, c/2)
MN = a+b-d/2
AB = a
CD = b - d
MN = 1/2 (a + b - d)
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