勾股定理与比例关系演示

GeoGebra 命令及参数

1. Segment(B_1, C) → f
2. Segment(C, A_1) → g
3. Segment(A_1, B_1) → h
4. Dilate(B_1, a_1, C) → B'
5. Dilate(C, a_1, C) → C'_2
6. Segment(B', C'_2) → a
7. Dilate(C, a_1, C) → C'
8. Dilate(A_1, a_1, C) → A
9. Segment(C', A) → b
10. Dilate(A_1, a_1, C) → A'
11. Dilate(B_1, a_1, C) → B
12. Segment(A', B) → c
13. Polygon(B', C, A) → t1, a_2, b', c_1
14. PointIn(t1) → Pointt1
15. Angle(C, B', A) → α
16. Angle(B', A, C) → β
17. Angle(B, C, C'_2) → γ
18. Angle(A, C, B) → δ