角度平分线定理形成性评估

GeoGebra 命令及参数

1. Sequence(i, i, -10, 10, 1) → l1
2. RandomElement(l1) → sol
3. Sequence(i, i, 10, 90, 1) → firstalist
4. RandomElement(firstalist) → firsta
5. Sequence(i, i, firsta + 5, 90, 1) → secondalist
6. Random(-30, 30) → a
7. Random(-30, 30) → c
8. Random(-30, 30) → f
9. Expand((a * x) + b) → h
10. Expand((c * x) + d) → p
11. Expand((f * x) + g) → q
12. Intersect(xAxis, yAxis) → B
13. Point(xAxis) → A
14. Rotate(A, (firsta * pi / 180), B) → D
15. Rotate(D, (seconda * pi / 180), B) → C
16. Ray(B, A) → k
17. Ray(B, D) → l
18. Ray(B, C) → m
19. Textfield(n) → InputBox1
20. Textfield(o) → InputBox3
21. Textfield(r) → InputBox4
22. If(n ≟ sol, "√", "X") → text5
23. If(o ≟ seconda, "√", "X") → text7
24. If(r ≟ biga, "√", "X") → text8
25. Textfield(s) → InputBox2
26. If(s ≟ firsta, "√", "X") → text6
27. Angle(A, B, D) → α
28. Angle(D, B, C) → β
29. Random(1, 3) → t