Discuz Math Forum»Forum › Mathematics › High School › 关于内心的问题

Return to list New

View 1907|Reply 0

[几何] 关于内心的问题

[Copy link]

3226 Threads	7843 Posts	52 Reputation

Send PM

hbghlyj posted 2020-4-16 09:01 |Read mode

新建位图图像 (1).png

新建位图图像.png

由BC延长线上一点D引外接圆切线，切点为E，∠ADB的平分线交BI,CI于F,G，求证AEFI共圆

Reply Edit 0

Return to list New

Quick Reply

× Quick Reply To Top Edit

2025-7-23 19:43 GMT+8

Powered by Discuz!

Processed in 0.013564 seconds, 25 queries