如图,在平行四边形ABCD中,点E在边BC上,连接AE并延长,交对角线BD于点F、DC的延长线于点G,如果BE/EC=3/2.求EF/EG的值.
如图,在平行四边形ABCD中,点E在边BC上,连接AE并延长,交对角线BD于点F、DC的延长线于点G,如果
=.求
的值.
数学人气:556 ℃时间:2019-08-20 18:47:03
优质解答
∵四边形ABCD是平行四边形,
∴AD=BC,AD∥BC,
∴△ADF∽△EBF,△GEC∽△GAD,
∴
=,
=,
∵
=,
∴
=,
=,
∴
=
,
=
,
∴
=
,
=
,
∴
=
.
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