等腰梯形的对角线 by Gail Kliewer

GeoGebra 命令及参数

1. Segment(A, B) → a
2. Segment(A, C) → b
3. Line(C, a) → c
4. Circle(A, C) → d
5. Circle(B, 2.98) → e
6. Intersect(e, c, 1) → D
7. Segment(C, D) → f
8. Segment(D, B) → g
9. Segment(C, B) → h
10. Segment(D, A) → i
11. Intersect(h, i) → E
12. Distance(D, E) → distanceDE
13. Distance(E, A) → distanceEA
14. Distance(C, E) → distanceCE
15. Distance(E, B) → distanceEB
16. Segment(F, G) → j
17. Circle(F, 2.5) → k
18. Circle(G, 2.5) → p
19. Intersect(k, p, 1) → H
20. Line(H, j) → l
21. Circle(F, 2) → q
22. Circle(G, 2) → r
23. Intersect(q, l, 2) → I
24. Intersect(r, l, 1) → J
25. Segment(F, I) → m
26. Segment(I, J) → n
27. Segment(J, G) → s
28. Segment(G, I) → t
29. Segment(J, F) → a_1
30. Intersect(t, a_1) → K
31. Angle(J, K, I) → α
32. Angle(I, K, F) → β
33. Angle(F, K, G) → γ
34. Angle(G, K, J) → δ