P4 周长 Q2
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该范例演示了如何通过几何作图计算多边形的周长。涉及的核心数学概念包括多边形、三角函数和解析几何。通过使用Segment、Sequence、Polygon等GeoGebra命令,可以动态地构造和展示多边形的周长。适合初中高年级学生或数学爱好者学习和探索。
GeoGebra 命令及参数
Segment(Blue01a, Blue01b) → Blue01Segment(Blue02a, Blue02b) → Blue02Segment(Blue03a, Blue03b) → Blue03Segment(Blue04a, Blue04b) → Blue04Segment(Red01a, Red01b) → Red01Segment(Red02a, Red02b) → Red02Segment(Red03a, Red03b) → Red03Segment(Red04a, Red04b) → Red04Segment(Blue05a, Blue05b) → Blue05Segment(Red05a, Red05b) → Red05Segment(Blue06a, Blue06b) → Blue06Segment(Red06a, Red06b) → Red06Sequence(Sequence[(s, t), s, 0, 25], t, -5, 13) → ListDotsSegment(Blue07a, Blue07b) → Blue07Segment(Blue08a, Blue08b) → Blue08Segment(Blue09a, Blue09b) → Blue09Segment(Blue10a, Blue10b) → Blue10Segment(Blue11a, Blue11b) → Blue11Segment(Blue12a, Blue12b) → Blue12Segment(Red07a, Red07b) → Red07Segment(Red08a, Red08b) → Red08Segment(Red09a, Red09b) → Red09Segment(Red10a, Red10b) → Red10Segment(Red11a, Red11b) → Red11Segment(Red12a, Red12b) → Red12Segment(Green01a, Green01b) → Green01Segment(Green02a, Green02b) → Green02Segment(Green03a, Green03b) → Green03Segment(Green04a, Green04b) → Green04Segment(Green05a, Green05b) → Green05Segment(Green06a, Green06b) → Green06Segment(Green07a, Green07b) → Green07Segment(Green08a, Green08b) → Green08Segment(Green09a, Green09b) → Green09Segment(Green10a, Green10b) → Green10Segment(Green11a, Green11b) → Green11Segment(Green12a, Green12b) → Green12Segment(Green13a, Green13b) → Green13Polygon(VPoly1Fa, VPoly1Fb, VPoly1Fc, VPoly1Fd, VPoly1Fe, VPoly1Ff, VPoly1Fg) → Poly1F, SPoly1Fa, SPoly1Fb, SPoly1Fc, SPoly1Fd, SPoly1Fe, SPoly1Ff, SPoly1FgSegment(Green14a, Green14b) → Green14Polygon(VPoly1Ma, VPoly1Mb, VPoly1Mc, VPoly1Md, VPoly1Me, VPoly1Mf, VPoly1Mg) → Poly1M, SPoly1Ma, SPoly1Mb, SPoly1Mc, SPoly1Md, SPoly1Me, SPoly1Mf, SPoly1MgPolygon(VPoly2Fa, VPoly2Fb, VPoly2Fc, VPoly2Fd, VPoly2Fe, VPoly2Ff) → Poly2F, SPoly2Fa, SPoly2Fb, SPoly2Fc, SPoly2Fd, SPoly2Fe, SPoly2FfPolygon(VPoly2Ma, VPoly2Mb, VPoly2Mc, VPoly2Md, VPoly2Me, VPoly2Mf) → Poly2M, SPoly2Ma, SPoly2Mb, SPoly2Mc, SPoly2Md, SPoly2Me, SPoly2Mf