
[幾何] 奧數一題求面積

左邊那塊面積卡很久
先謝過了
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推
11/07 22:49, , 1F
11/07 22:49, 1F

推
11/07 22:50, , 2F
11/07 22:50, 2F
→
11/07 23:00, , 3F
11/07 23:00, 3F
→
11/07 23:01, , 4F
11/07 23:01, 4F
→
11/07 23:03, , 5F
11/07 23:03, 5F
→
11/07 23:06, , 6F
11/07 23:06, 6F
推
11/08 19:46, , 7F
11/08 19:46, 7F
→
11/09 09:23, , 8F
11/09 09:23, 8F