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Question

In the given below, E is the mid-point of the side AD of the trapezium ABCD with AB parallel to DC. A line through E drawn to AB intersects BC at F. Show that F is the mid-point of BC.
1146945_4925f7ff1fed4df0978b8c1b0a479839.png

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Solution


ABCD is a trapezium in which ABDC, BD is a diagonal and E is the mid-point of AD and a line drawn through E parallel to AB intersecting BC at F such that EFAB.
Let EF intersected BD at G.
In ABD,
E is the mid-point of AD and also EGAB.
We get, G is the mid point of BD [ By converse of mid point theorem ]
Similarly,
In BDC,
G is mid point of BD and GFABDC.
F is mid point of BC [ By converse of mid point theorem ]

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