Bluesy
2021-12-08T06:16:46+00:00
[img]https://img.nga.178.com/attachments/mon_202112/14/-7Q2p-hb88K21T1kSgn-m8.jpg[/img]
只能算出30度,感觉需要画辅助线[s:ac:哭笑]
能不能别来了[img]http://img.nga.178.com/attachments/mon_201209/14/-47218_5052bc8638067.png[/img]
这种题本质不就是凑相似
[url]http://www.gensu.co.jp/saito/challenge/pdf/3circumcenter_d20180609.pdf[/url]
这里有通用解法
明天的数学题
[img]https://img.nga.178.com/attachments/mon_202112/14/-7Q2p-ejbrK1xT3cSr6-e0.jpg[/img]
[s:ac:衰]一个月前的帖子了……
[img]https://img.nga.178.com/attachments/mon_202112/14/-7Q2p-bzjoKeT1kSc1-87.jpg[/img]
[img]https://img.nga.178.com/attachments/mon_202112/14/-7Q2p-37iK1hT1kSe8-gf.jpg[/img]
我说一句,你们如果要配图,能不能把图画标准,这TM什么吊图[s:ac:擦汗][s:ac:擦汗][s:ac:擦汗]
[quote][pid=573434655,29844339,1]Reply[/pid] Post by [uid=15727094]狼人X黑狼[/uid] (2021-12-14 14:31):
[s:ac:哭笑]余弦定理可以轻松解决([/quote]初中没有三角函数[s:a2:鬼脸]
?[img]http://img.nga.178.com/attachments/mon_201209/14/-47218_5052bc4cc6331.png[/img]