Question: Consider the parallelogram ABCD (see diagram), and let E be the midpoint of side AD. Show that BE and AC trisect each other; that is,

Consider the parallelogram ABCD (see diagram), and let E be the midpoint of side AD.
.C B. ID

Show that BE and AC trisect each other; that is, show that the intersection point is one-third of the way from E to B and from A to C.

.C B. ID

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