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矩形周长与面积

矩形周长与面积
几何画板及绘图内容加载中，请稍等……
2018-12-13 00:13
多边形解析几何几何作图
本范例演示矩形的周长与面积计算。涉及的核心数学概念包括矩形的性质、面积和周长的计算公式。通过使用GeoGebra命令如Length、Polygon、Segment等，可以动态地展示矩形的构造过程。适合初中及以上学生学习几何作图和面积周长计算。

GeoGebra 命令及参数

  1. LaTeX("\text{ Swimming Area\\ Width (m) }") → A1
  2. Length(xValuesToUse) → numVals
  3. UnicodeToLetter(10007) → xmark
  4. UnicodeToLetter(10003) → cmark
  5. Textfield(D6) → C6
  6. Textfield(D4) → C4
  7. Textfield(D5) → C5
  8. LaTeX("\text{ Total Rope \\ Length (m)}") → B1
  9. Textfield(D3) → C3
  10. Sequence(LaTeX[If[i ≟ 0, ("\cellcolor{#ffcc80}" * A1), ("\cellcolor{#eeeeee}\vphantom{\dfrac{1}{2}}" * Element[xValuesToUse, i])]], i, 0, numInputs) → tblCol1
  11. Sequence(LaTeX[If[i ≟ 0, ("\cellcolor{#ffcc80}" * B1), ("\cellcolor{#eeeeee}" * Element[B2:B7, i])]], i, 0, numInputs) → tblCol2
  12. Polygon(A, B, 4) → swimmingArea, h, k, l, m, C, D
  13. Segment(E, F) → n
  14. Textfield(D2) → C2
  15. LaTeX(If[Defined[E2], If[F2, (("\text{\textcolor{#1C5E21}{" * cmark) * "}}"), (("\text{\textcolor{#E41B17}{" * xmark) * "}}")], " "]) → G2
  16. LaTeX(If[Defined[E3], If[F3, (("\text{\textcolor{#1C5E21}{" * cmark) * "}}"), (("\text{\textcolor{#E41B17}{" * xmark) * "}}")], " "]) → G3
  17. LaTeX(If[Defined[E4], If[F4, (("\text{\textcolor{#1C5E21}{" * cmark) * "}}"), (("\text{\textcolor{#E41B17}{" * xmark) * "}}")], " "]) → G4
  18. LaTeX(If[Defined[E5], If[F5, (("\text{\textcolor{#1C5E21}{" * cmark) * "}}"), (("\text{\textcolor{#E41B17}{" * xmark) * "}}")], " "]) → G5
  19. LaTeX(If[Defined[E6], If[F6, (("\text{\textcolor{#1C5E21}{" * cmark) * "}}"), (("\text{\textcolor{#E41B17}{" * xmark) * "}}")], " "]) → G6
  20. Sequence(LaTeX[If[i ≟ 1, (("\vphantom{" * A1) * "}"), "\vphantom{\dfrac{\frac{1}{2}}{2}}"]], i, 0, numInputs) → tblColvPhantom
  21. TableText({tblCol1, tblCol2}, "|_ vc") → DisplayTbl
  22. Sequence((("SetValue(D" * i) * ",blankStr)"), i, 2, numInputs + 1) → cmdEmptyInput
  23. Polygon(G, H, I, J) → coverGraph, g_1, h_1, i_1, j_1
  24. Textfield(D7) → C7
  25. LaTeX((((("\text{\textbf{Question: }" * MainInstruc) * "\\\textbf{Instructions: }") * SpecInstruc) * "}")) → allInstruc
  26. Zip(Text[A, B, true, true], A, {"x", "y"}, B, {(17, 2), (0, 44)}) → axisLbls
  27. TableText({tblColvPhantom, G1:G7}, "vc") → checkTbl
  28. LaTeX(If[Defined[E7], If[F7, (("\text{\textcolor{#1C5E21}{" * cmark) * "}}"), (("\text{\textcolor{#E41B17}{" * xmark) * "}}")], " "]) → G7
  29. Zip((A, B), A, xValuesToUse, B, B2:B7) → pointsToPlot