菱形的性质 by neha.saraf

GeoGebra 命令及参数

1. Segment(A, D) → a
2. Circle(A, D) → c
3. Point(c) → B
4. Line(B, a) → b
5. Segment(A, B) → d
6. Segment(B, D) → e
7. Midpoint(B, D) → E
8. OrthogonalLine(E, e) → f
9. Intersect(b, f) → C
10. Segment(B, C) → g
11. Segment(C, D) → h
12. Segment(A, E) → i
13. Segment(E, C) → j
14. Segment(B, E) → k
15. Segment(E, D) → l
16. Angle(A, E, B) → α
17. Angle(B, E, C) → β
18. Angle(C, E, D) → γ
19. Angle(B, A, E) → δ
20. Angle(D, A, E) → ε
21. Angle(D, E, A) → ζ