三角函数关系 by Austin Garvin

GeoGebra 命令及参数

1. Intersect(xAxis, yAxis) → B
2. Circle(B, A_1) → c
3. Point(xAxis) → C
4. Line(B, C) → a
5. Intersect(a, xAxis) → D
6. Intersect(a, xAxis) → E_1
7. Intersect(a, xAxis) → F
8. Intersect(c, a) → G, H
9. Intersect(a, xAxis) → I
10. Point(c) → A
11. Segment(A, B) → Hypotenuse
12. Line(B, H) → d
13. OrthogonalLine(A, d) → e
14. Intersect(a, d) → E
15. Intersect(e, a) → J
16. Segment(A, J) → Opposite
17. Segment(B, J) → Adjacent
18. Intersect(c, yAxis, 2) → K
19. Intersect(c, yAxis, 1) → L
20. Angle(H, B, A) → θ
21. Angle(A, J, B) → α