Regular Octagon and Sphere

GeoGebra Commands & Parameters

1. Point(zAxis) → C
2. Circle(C, b, zAxis) → e
3. Point(e) → D
4. Rotate(D, 120°, C, xOyPlane) → D'
5. Circle(A, a) → c
6. Point(c) → B
7. Segment(A, B) → f
8. Sphere(A, a) → d
9. Segment(A, C) → i
10. Segment(C, D) → j
11. Angle(D, C, D', xOyPlane) → γ
12. Segment(D', C) → k
13. Rotate(D', 120°, C, xOyPlane) → D''
14. Angle(D', C, D'', xOyPlane) → δ
15. Segment(C, D'') → l
16. Polygon(D, D'', D') → t2, d', d_1, d''
17. Segment(A, B) → g
18. Rotate(B, 45°, A) → B'
19. Angle(B, A, B') → α
20. Segment(A, B') → h
21. Rotate(B', 45°, A) → B''
22. Angle(B', A, B'') → β
23. Segment(A, B'') → m
24. Rotate(B'', 45°, A) → B'''
25. Angle(B'', A, B''') → ε
26. Segment(A, B''') → p
27. Rotate(B''', 45°, A) → E
28. Angle(B''', A, E) → ζ
29. Segment(A, E) → q
30. Rotate(E, 45°, A) → E'
31. Angle(E, A, E') → η
32. Segment(E', A) → s
33. Rotate(E', 45°, A) → E''
34. Angle(E', A, E'') → θ
35. Segment(E'', A) → f_1
36. Rotate(E'', 45°, A) → E'''
37. Angle(E'', A, E''') → ι
38. Segment(A, E''') → g_1
39. Polygon(B, B', B'', B''', E, E', E'', E''') → poly1, b_1, b', b'', b''', e_1, e', e'', e'''
40. Segment(D, B'') → n
41. Segment(D, B''') → t
42. Segment(D, E) → h_1
43. Segment(D, E') → i_1
44. Segment(D, E'') → j_1
45. Segment(D, E''') → r
46. Segment(D, B) → k_1
47. Segment(D, B') → l_1