圆柱体选择题
几何画板及绘图内容加载中,请稍等……
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
Random(1, 20) → aRandom(2, 25) → hMod(b1, 1000) → bf10Mod(b2, 1000) → bf20Mod(b3, 1000) → bf30Mod(b4, 1000) → bf40If(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]]) → text3If(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]]) → text4If(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]]) → text5Random(1, 4) → bIf(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]]) → text6Mod(c1, 1000) → cf10Mod(c2, 1000) → cf20Mod(c3, 1000) → cf30Mod(c4, 1000) → cf40If(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]]) → text11If(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]]) → text12If(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]]) → text13If(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]]) → text14If(d ≟ 1, text3, text11) → text7If(d ≟ 1, text4, text12) → text8If(d ≟ 1, text5, text13) → text9If(d ≟ 1, text6, text14) → text10If(d ≟ 1, text6, text14) → text15If(d ≟ 1, "ลบ.ซม.", "ตร.ซม.") → nuiIf(c ≟ 1, "ก.", If[c ≟ 2, "ข.", If[c ≟ 3, "ค.", "ง."]]) → text34If(b ≟ 1, "ก.", If[b ≟ 2, "ข.", If[b ≟ 3, "ค.", "ง."]]) → text35