面积与周长：几何图形的基本概念与作图方法

GeoGebra 命令及参数

1. Polygon(A, B, 4) → poly1, a, b, c, d, C, D
2. Textfield(Answer) → inputBox2
3. Textfield(text1) → inputBox1
4. Point(xAxis) → E
5. Circle(E, f) → g
6. Point(g) → F
7. Rotate(F, Σ, E) → F'
8. Angle(F, E, F') → β
9. Line(F', E) → h
10. Polygon(G, H, 4) → poly2, j, k, l, m, I, J
11. Midpoint(k) → L
12. Midpoint(m) → M
13. Polygon(G, M, L, B) → poly3, g_1, m_1, l_1, b_1
14. Polygon(G, M, L, B) → poly4, g_2, m_2, l_2, b_2
15. Midpoint(F', G) → N
16. Midpoint(L, M) → O
17. Polygon(N, L, M) → poly5, m_3, n, l_3
18. Segment(N, O) → p
19. Mirror(N, G) → N'
20. Polygon(N, N', M, L) → poly6, n_1, n', m_4, l_4
21. Polygon(L, N, G, M) → poly7, l_5, n_2, g_3, m_5
22. Segment(E, F') → q
23. Mirror(F', E) → F''
24. Segment(F', F'') → r
25. Circle(E, F') → s
26. Area(s) → o
27. PointIn(s) → Points_1
28. Area(s) → t
29. PointIn(s) → Points
30. Perimeter(poly3) → perimeterpoly3
31. PointIn(poly3) → Pointpoly3
32. Area(g) → A11
33. LaTeX(right, true, true) → text19
34. LaTeX(wrong, true, true) → text21
35. Element(list2, i) → v
36. Segment(R, S) → a_1
37. Point(a_1) → T
38. Circle(R, T) → c_1
39. Point(c_1) → U
40. Mirror(U, R) → U'
41. Textfield(Name) → inputBox3
42. Textfield(Date) → inputBox4