互补与补充角:几何作图与计算
几何画板及绘图内容加载中,请稍等……
这个范例演示了如何通过几何作图来理解互补和补充角的概念。核心数学概念包括角度的定义、互补角和补充角的计算。作图要点涉及使用GeoGebra命令如Polygon、Angle、Circle等来构造角度和图形。适合6-8年级学生用于几何学习或课堂演示。
GeoGebra 命令及参数
Polygon(I, J, K, L) → q1, i, j, k, lVector(C, V) → uPointIn(q1) → ACircle(A, 4) → cPoint(c) → BSegment(A, B) → s11OrthogonalLine(A, s11) → perpLineIntersect(c, perpLine, 2) → MCOMArc(c, B, MCOM) → complArcMirror(B, A) → MSUPArc(c, B, MSUP) → supplArcPoint(If[choice ≤ 2, complArc, supplArc]) → B'Angle(B, A, B') → αRotate(D, If[choice ≤ 2, 90° - α, 180° - α], C) → D'Point(s11) → ECircleSector(A, E, B') → dSegment(C, D) → s21Segment(A, B') → s12Angle(D, C, D') → βSegment(C, D') → s22Point(s21) → FCircleSector(C, F, D') → eVector(A, V) → vTranslate(e, Vector[(u * transSli2)]) → e'AngularBisector(B, A, B') → labLin1AngularBisector(D, C, D') → labLin2Intersect(e, labLin2) → L2,Translate(C, u) → C'Translate(C, u) → C'_{1}Translate(C, Vector[(transSli2 * u)]) → C'_{2}Translate(D, Vector[(transSli2 * u)]) → D'_{1}Segment(C'_{2}, D'_{1}) → s21'Translate(C, Vector[(transSli2 * u)]) → C'_{3}Translate(D', Vector[(transSli2 * u)]) → D''Segment(C'_{3}, D'') → s22'Translate(A, Vector[(transSli1 * v)]) → A'Translate(B', Vector[(transSli1 * v)]) → B''Segment(A', B'') → s12'Translate(A, Vector[(transSli1 * v)]) → A'_{1}Translate(B, Vector[(transSli1 * v)]) → B'_{1}Segment(A'_{1}, B'_{1}) → s11'Translate(d, Vector[(transSli1 * v)]) → d'Angle(D'', V, B'_{1}) → angRotate(d', (rotAng * rotSli), V) → d''Rotate(A'_{1}, (rotAng * rotSli), V) → GRotate(B'_{1}, (rotAng * rotSli), V) → HSegment(G, H) → s11''Rotate(A', (rotAng * rotSli), V) → A''Rotate(B'', (rotAng * rotSli), V) → B'''Segment(A'', B''') → s12''Polygon(A, E, 4) → squa1, f, g, h, m, M, NPolygon(C, F, 4) → squa2, n, p, q, r, O, PTranslate(squa1, Vector[(transSli1 * v)]) → squa1'Rotate(squa1', (rotAng * rotSli), V) → squa1''Translate(squa2, Vector[(transSli2 * u)]) → squa2'Translate(Polygon[C, F, 4], Vector[(transSli1 * u)]) → squaBlackCircle(A, 4.3) → cExtMirror(B, cExt) → B'_{2}Segment(B, B'_{2}) → sv11Mirror(B', cExt) → B''_{1}Segment(B', B''_{1}) → sv12Translate(B, Vector[(transSli1 * u)]) → B'_{3}Translate(B', Vector[(transSli1 * u)]) → B''_{2}Translate(B', Vector[(transSli1 * v)]) → B''_{3}Translate(B''_{1}, Vector[(transSli1 * v)]) → QSegment(B''_{3}, Q) → sv12'Translate(B, Vector[(transSli1 * v)]) → B'_{4}Translate(B'_{2}, Vector[(transSli1 * v)]) → RSegment(B'_{4}, R) → sv11'Rotate(B'_{4}, (rotAng * rotSli), V) → SRotate(R, (rotAng * rotSli), V) → R'Segment(S, R') → sv11''Rotate(B''_{3}, (rotAng * rotSli), V) → TRotate(Q, (rotAng * rotSli), V) → Q'Segment(T, Q') → sv12''circlePixels(B, 7 + (7 * pulsing), Corner[1], Corner[3], Corner[5]) → pulsingObject1circlePixels(B', 7 + (7 * pulsing), Corner[1], Corner[3], Corner[5]) → pulsingObject2Rotate(B, α - 15°, A) → BF
AI 绘图提示语参考
绘制一个圆,圆心为点C,半径为4。在圆上任选一点A,连接A和圆心C形成线段。作线段A的垂线,与圆的交点为MCOM。以B为圆心,MCOM为半径画一个圆弧,表示补角弧。以B为圆心,A为圆心,分别画两个圆弧,表示补角和余角。根据选择,选择补角或余角圆弧上的点B',连接A和B'形成角α。旋转点D,使其与角α的关系对应,形成角β。绘制角α和角β的角平分线,标记交点L2。
以上提示语为根据原始绘图命令整理而来,仅供参考。