题库大全
查看
题库大全
题库
考试培训
财会类题库
网络知识
作业答案
作业习题
蚂蚁庄园答案
当前位置:
题库大全
作业答案
数学题如图在三角形abc中,∠acb=90度,BC的垂直平分线DE交BC于点D,交AB于点E,F在D
数学题如图在三角形abc中,∠acb=90度,BC的垂直平分线DE交BC于点D,交AB于点E,F在D
发布时间:2021-02-27 23:07:33
数学题如图在三角形abc中,∠acb=90度,BC的垂直平分线DE交BC于点D,交AB于点E,F在DE的延长线上,且AF=CF.问四边形ACEF是平行四边形吗?不要辅助线
网友回答
是AF=CE
过点A作AM⊥DF交DF于M,
因为DE是BC和垂直平分线,所以E是AB中点,FA=EC=EA=EB
所以FM=EM
三角形BED与三角形AEM全等,EM=ED=1/2AC
EF=AC四边形ACEF是平行四边形
======以下答案可供参考======
供参考答案1:
CF不在一条直线上耶。是打错了吗
以上问题属网友观点,不代表本站立场,仅供参考!
上一条:
初二上浙教版几何难题在三角形ABC中,AB=AC,在图中添一点D,使得以A,B,C,D四点的任何三点
下一条:
数学初二几何快来教教我
资讯推荐
96 24 64 98 64 98 48 26 Who can tell me what's the
英文的what will you do tomorrow的过去式
What is the percent uncertainty in the measurement
percent与percent of有何区别
THE AGE OF UNCERTAINTY怎么样
A violation of the uncertainty principle.
translate the sentence for me ..pleaseI talked to
Could you tell me B.when he lives in Shanghai C.wh
I didn't order anything last time,but if you do th
This is a book of
This is the second time for her (get) the prise
The box isbig enough to put my shoes in .中的in是什么用法
If I in your shoes I will never come back here
Come and buy your shoes at Mike' store!
lf l were in your shoes ,l’d study to be a
Someone will hate you,because your weaknesses but,
英语翻译sort of怎么理解?
fover make it your .不要逐字逐句翻译,我也不是英盲,我明白意思.但是谁能翻译的恰
what do you do on sunday不加often行吗
what time does mark begin school?这里的begin he begin
Why do you prefer to go in that way?如题
looking around the city ,you will find many old ch
Look Around (You Ll Find Me There) 歌词
Look Around (And You Ll Find Me There) 歌词
Brave a little bit,we close a little
1.You can know the time by your watch or c
You can know the time with the help of a
Thanks( )your watch.I can know the time.用介词in on u
something interesting happening/happen/happened/ha
用happen,happening,happened造句
返回顶部