ABCD is a trapezium where ABIIDC is midpoint of AD. a line drawn from E, parallel to AB, meet BC at point F. prove that f is midpoint of BC.
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Given,
ABCD is a trapezium in which AB || DC, BD is a
diagonal and E is the mid-point of AD and a line is drawn through E parallel to
AB intersecting BC at F such that EF||AB.
To Show:
F is the mid-point of BC.
Proof:
Let EF
intersected BD at G.
In ΔABD,
E is the mid point of AD and also EG || AB.
we get, G is the mid point of BD
(by Converse of mid
point theorem)
Similarly,
In ΔBDC,
G is the mid point of BD and GF || AB || DC.
Thus, F is the mid point of BC
(by Converse of mid point theorem)
_____________________________________________________________
Hope this will help you...
ABCD is a trapezium in which AB || DC, BD is a
diagonal and E is the mid-point of AD and a line is drawn through E parallel to
AB intersecting BC at F such that EF||AB.
To Show:
F is the mid-point of BC.
Proof:
Let EF
intersected BD at G.
In ΔABD,
E is the mid point of AD and also EG || AB.
we get, G is the mid point of BD
(by Converse of mid
point theorem)
Similarly,
In ΔBDC,
G is the mid point of BD and GF || AB || DC.
Thus, F is the mid point of BC
(by Converse of mid point theorem)
_____________________________________________________________
Hope this will help you...
Apurwa56:
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Answered by
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