等值分数练习

GeoGebra 命令及参数

1. Random(1, 20) → b
2. Random(1, 20) → a
3. If(a ≥ b, b / a, a / b) → fraction
4. FractionText(fraction) → text1
5. If(a ≥ b, (b / a * 360)°, (a / b * 360)°) → angle
6. Intersect(xAxis, yAxis) → A
7. Point(yAxis) → B
8. Circle(A, B) → c
9. Point(c) → C
10. Segment(A, C) → d
11. Rotate(A, -angle, A) → A'
12. Rotate(C, -angle, A) → C'
13. Segment(A', C') → d'
14. CircleSector(A, C', C) → e
15. Point(e) → D
16. Point(e) → E
17. Point(xAxis) → F
18. Circle(F, G) → f
19. Segment(F, G) → g
20. Rotate(F, -angle2, F) → F'
21. Rotate(G, -angle2, F) → G'
22. Segment(F', G') → g'
23. Intersect(f, g, 1) → H
24. CircleSector(F, G', H) → k