
[幾何] 一題三角形

請問一下第二題是如何知道鄰邊跟對邊的長度分別為p跟p^2-a的,謝謝
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推
08/17 16:36, , 1F
08/17 16:36, 1F
→
08/17 16:37, , 2F
08/17 16:37, 2F
→
08/17 16:37, , 3F
08/17 16:37, 3F
→
08/17 16:39, , 4F
08/17 16:39, 4F
推
08/17 18:36, , 5F
08/17 18:36, 5F
→
08/17 19:36, , 6F
08/17 19:36, 6F
→
08/17 19:37, , 7F
08/17 19:37, 7F
推
08/18 08:05, , 8F
08/18 08:05, 8F