圆柱体选择题

圆柱体选择题
几何画板及绘图内容加载中,请稍等……
2018-05-25 09:04
该范例演示了圆柱体的几何构造,涉及圆柱体的基本概念,如底面半径、高和侧面积。通过使用GeoGebra命令如Random、Mod和If,可以动态地改变圆柱体的参数,从而帮助学生理解圆柱体的性质。适合初中和高中学生学习几何作图和立体几何。

GeoGebra 命令及参数

  1. Random(1, 20) → a
  2. Random(2, 25) → h
  3. Mod(b1, 1000) → bf10
  4. Mod(b2, 1000) → bf20
  5. Mod(b3, 1000) → bf30
  6. Mod(b4, 1000) → bf40
  7. If(b1 > 999.99 ∧ bf10 > 99.99, bf1 + "," + bf10, If[b1 > 999.99 ∧ bf10 > 9.99, bf1 + ",0" + bf10, If[b1 > 999.99 ∧ bf10 < 10, bf1 + ",00" + bf10, "" + bf10]]) → text3
  8. If(b2 > 999.99 ∧ bf20 > 99.99, bf2 + "," + bf20, If[b2 > 999.99 ∧ bf20 > 9.99, bf2 + ",0" + bf20, If[b2 > 999.99 ∧ bf20 < 10, bf2 + ",00" + bf20, "" + bf20]]) → text4
  9. If(b3 > 999.99 ∧ bf30 > 99.99, bf3 + "," + bf30, If[b3 > 999.99 ∧ bf30 > 9.99, bf3 + ",0" + bf30, If[b3 > 999.99 ∧ bf30 < 10, bf3 + ",00" + bf30, "" + bf30]]) → text5
  10. Random(1, 4) → b
  11. If(b4 > 999.99 ∧ bf40 > 99.99, bf4 + "," + bf40, If[b4 > 999.99 ∧ bf40 > 9.99, bf4 + ",0" + bf40, If[b4 > 999.99 ∧ bf40 < 10, bf4 + ",00" + bf40, "" + bf40]]) → text6
  12. Mod(c1, 1000) → cf10
  13. Mod(c2, 1000) → cf20
  14. Mod(c3, 1000) → cf30
  15. Mod(c4, 1000) → cf40
  16. If(c1 > 999.99 ∧ cf10 > 99.99, cf1 + "," + cf10, If[c1 > 999.99 ∧ cf10 > 9.99, cf1 + ",0" + cf10, If[c1 > 999.99 ∧ cf10 < 10, cf1 + ",00" + cf10, "" + cf10]]) → text11
  17. If(c2 > 999.99 ∧ cf20 > 99.99, cf2 + "," + cf20, If[c2 > 999.99 ∧ cf20 > 9.99, cf2 + ",0" + cf20, If[c2 > 999.99 ∧ cf20 < 10, cf2 + ",00" + cf20, "" + cf20]]) → text12
  18. If(c3 > 999.99 ∧ cf30 > 99.99, cf3 + "," + cf30, If[c3 > 999.99 ∧ cf30 > 9.99, cf3 + ",0" + cf30, If[c3 > 999.99 ∧ cf30 < 10, cf3 + ",00" + cf30, "" + cf30]]) → text13
  19. If(c4 > 999.99 ∧ cf40 > 99.99, cf4 + "," + cf40, If[c4 > 999.99 ∧ cf40 > 9.99, cf4 + ",0" + cf40, If[c4 > 999.99 ∧ cf40 < 10, cf4 + ",00" + cf40, "" + cf40]]) → text14
  20. If(d ≟ 1, text3, text11) → text7
  21. If(d ≟ 1, text4, text12) → text8
  22. If(d ≟ 1, text5, text13) → text9
  23. If(d ≟ 1, text6, text14) → text10
  24. If(d ≟ 1, text6, text14) → text15
  25. If(d ≟ 1, "ลบ.ซม.", "ตร.ซม.") → nui
  26. If(c ≟ 1, "ก.", If[c ≟ 2, "ข.", If[c ≟ 3, "ค.", "ง."]]) → text34
  27. If(b ≟ 1, "ก.", If[b ≟ 2, "ข.", If[b ≟ 3, "ค.", "ง."]]) → text35