SSA全等三角形判定与几何作图

GeoGebra 命令及参数

1. Point(xAxis) → A
2. Point(xAxis) → B
3. Polygon(A, B, C) → poly1, c, a, b
4. Angle(B, A, C) → α
5. Angle(C, B, A) → β
6. Distance(A, B) → distanceAB
7. Angle(A, C, B) → η
8. Circle(C, A, B) → h
9. Circumference(h) → circumferenceh
10. Rotate(D, 75.64*°, E) → D'
11. Angle(D, E, D') → γ
12. Rotate(E, 314.87*°, D) → E'
13. Angle(E', D, E) → δ
14. Line(E, D') → d
15. Line(D, E') → e
16. Distance(D, e) → distanceDe
17. Intersect(d, e) → F
18. Distance(D, F) → distanceDF