60度三角函数值

GeoGebra 命令及参数

1. Center(c) → A
2. Rotate(B, pi / 3, A) → B'_1
3. Intersect(h, i) → C
4. Midpoint(A, B'_1) → J
5. Angle(B, A, B'_1) → β
6. Rotate(B, pi / 4, A) → B'_2
7. Angle(B, A, B'_2) → γ
8. Intersect(g, i) → D
9. Polygon(A, D, B'_2) → poly2, b'_2, a_2, d
10. Polygon(A, C, B'_1) → poly3, b'_1, a_3, c_1
11. Dilate(A, If[0 < a ≤ 1, 1 - a, 0], J) → A'_1
12. Segment(A, A'_1) → k
13. Dilate(J, If[1 < a ≤ 2, 2 - a, 0], B'_1) → F'
14. CircleArc(A, B'_1, B) → p
15. Point(p) → I
16. Segment(A, I) → s
17. Textfield(r) → InputBox1
18. Dilate(A, If[0 < a ≤ 1, 1 - a, 0], I) → A'_2
19. Segment(A, A'_2) → t
20. Segment(J, F') → m
21. Midpoint(C, B'_1) → K
22. Dilate(C, If[0 < a ≤ 1, 1 - a, 0], K) → C'
23. Dilate(K, If[1 < a ≤ 2, 2 - a, 0], B'_1) → K'
24. Segment(C, C') → j
25. Segment(K, K') → l
26. Angle(B'_1, C, A) → α
27. Dilate(A, If[2 < a ≤ 3, 3 - a, 0], C) → A'
28. Segment(A, A') → n
29. Rotate(A, If[3.5 < a ≤ 4.5, ((a - 3.5) * pi / 3), pi / 3], A) → A'_3
30. Rotate(A', If[3.5 < a ≤ 4.5, ((a - 3.5) * pi / 3), pi / 3], A) → A''
31. Segment(A'_3, A'') → n'
32. Rotate(A'_3, If[4.5 < a ≤ 5.5, ((a - 4.5) * pi), pi], J) → F
33. Rotate(A'', If[4.5 < a ≤ 5.5, ((a - 4.5) * pi), pi], J) → A'''
34. Segment(F, A''') → n''
35. CircleArc(A, B, B'_1) → q