If B is the midpoint of AN and E is the midpoint of NR, then
(a) BE = 1/2 (AR).
(b) BE:AR = NE:ER.
(c) BN:BE = EN:EB.
(d) AN = 1/2 (NB).
(e) Both (a) and (d) are correct.
(a) BE = 1/2 (AR).
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