球体体积演示 by Sugeng Suprayogi
几何画板及绘图内容加载中,请稍等……
该范例演示了球体体积的计算方法。核心数学概念包括球体体积公式及其应用。通过使用GeoGebra命令如Sphere, IntersectPath, Intersect等,可以动态展示球体的构造过程。适合高中阶段学生学习立体几何。
GeoGebra 命令及参数
Sphere(A, r) → aIntersectPath(b, a) → cIntersect(yAxis, c) → B, CIntersect(xAxis, c) → D, ELine(D, E) → fLine(B, C) → gRotate(c, 90°, f) → c'Intersect(c, c') → F, G_1, ,Sequence(Rotate[c, ((i * 360) * ° / n), g], i, 1, n) → L_1Point(L_1) → ISegment(I, F) → hSegment(I, C) → iSegment(C, F) → jOrthogonalLine(C, h, space) → kIntersect(h, k) → GSegment(C, G) → lSegment(I, E) → dxSegment(C, G) → dyPolygon(A, H, J) → t1, j_1, a_1, h_1Pyramid(t1, r) → d, K, faceAHK, faceHJK, faceAJK, edgeAK, edgeHK, edgeJKCircleSector(J, A, H, xOyPlane) → eSequence(CircleSector[((((2 * i) - 1) * dx / 2), dy, 0), (((i - 1) * dx), 0, 0), ((i * dx), 0, 0), xOyPlane], i, 1, (2 * n)) → L_2Sequence(Pyramid[Polygon[(((i - 1) * dx), 0, 0), ((i * dx), 0, 0), ((((2 * i) - 1) * dx / 2), dy, 0)], r], i, 1, (2 * n)) → L_3