三角函数中的三个主要比值

GeoGebra 命令及参数

1. Segment(A, C) → adjacent
2. OrthogonalLine(C, adjacent) → b_2
3. Point(b_2) → B
4. Segment(A, B) → hypotenuse
5. Segment(B, C) → opposite
6. Angle(B, C, A) → α
7. Vector(D, E) → u
8. Vector(F, G) → v
9. Translate(A, v) → A'_3
10. Translate(C, v) → B'_3
11. Translate(B, v) → C'_3
12. Translate(A, v) → A'_1
13. Translate(C, v) → B'_1
14. Translate(A, v) → A'_2
15. Translate(B, v) → C'_1
16. Translate(B, v) → C'_2
17. Translate(C, v) → B'_2
18. Translate(D, v) → D'
19. Dilate(C'_1, 0.5, H) → L
20. Dilate(C'_2, 0.5, H) → M
21. Angle(C, A, B) → β
22. Segment(C, B) → c
23. Midpoint(hypotenuse) → I
24. Midpoint(opposite) → J
25. Midpoint(adjacent) → K
26. Point(d) → P
27. Vector(P, J) → w
28. Vector(P, I) → m
29. Vector(P, K) → n
30. Vector(N, O) → p
31. Segment(A, B) → q
32. Segment(B, C) → r
33. Segment(C, A) → s