[几何] QA-P7（四点形的7号心）

[Copy link]

3226 Threads	7843 Posts	52 Reputation

hbghlyj posted 2021-3-1 22:41 |Read mode

取点A1...A4(不成垂心组)中每三个点的九点圆心N1...N4,取点N1...N4中每三个点的九点圆心A1'...A4',求证A1...A4和A1'...A4'位似

Reply Edit 0

Quick Reply

2025-7-23 09:36 GMT+8

Powered by Discuz!

Processed in 0.012523 seconds, 22 queries

Account		Remember me	Forgot password
Password			Register account