E is midpoint of median AD of triangle ABC. BE is produced to meet AC at F. Show that AF =1/3AC.
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You also give figure
shreyansh012:
give figure first
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Cons:- draw a line from D meeting ar ac at g
Now in triangle adc e is the midpoint of the ad and ef ll to dg
so f is also the mid point of ag (midpoint theor)
Now in triangle bfc
D is also the midpoint of bc and dg ll to bf
So g is also a midpoint
Now in triange abc af=fg=gc
So af=1/3 ac
Now in triangle adc e is the midpoint of the ad and ef ll to dg
so f is also the mid point of ag (midpoint theor)
Now in triangle bfc
D is also the midpoint of bc and dg ll to bf
So g is also a midpoint
Now in triange abc af=fg=gc
So af=1/3 ac
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