悠闲数学娱乐论坛(第3版)»论坛 › 数学区 › 初等数学讨论 › 有关内心、内接圆

Return to list New

View 761|Reply 1

[几何] 有关内心、内接圆

[Copy link]

3152 Threads	8505 Posts	610K Credits

Credits: 66261

Send PM

hbghlyj Posted at 2019-1-14 00:11:55 |Read mode

Last edited by hbghlyj at 2024-12-13 17:00:00I为内心，AH为高，AI交BC于E，交外接圆于M，F在直线BC上，FM⊥AM，MH再次交外接圆于D，求证：∠IDE=∠IFM

Reply Edit

3152 Threads	8505 Posts	610K Credits

Credits: 66261

Send PM

Author| hbghlyj Posted at 2024-12-14 01:36:56

如何证明？

Reply Edit

Return to list New

手机版Mobile version|Leisure Math Forum

2025-4-23 03:08 GMT+8

Powered by Discuz!

× Quick Reply To Top Return to the list