锐角三角形勾股定理(含无理数边长)
几何画板及绘图内容加载中,请稍等……
所属专题
Pythagorean Theorem
该范例演示锐角三角形的勾股定理,涉及无理数边长。通过构造直角三角形的斜边与两腰,利用GeoGebra命令如Segment、Textfield、Polygon等,展示勾股定理在锐角三角形中的应用。适合初中及以上学生学习几何作图与勾股定理。
GeoGebra 命令及参数
Segment(A_1, B_1) → fSegment(A_1, B_1) → qTextfield(empty1) → ΕισΑΒ2Textfield(empty2) → ΕισAC2Textfield(empty3) → ΕισBC2Textfield(empty5) → ΕισAC2kaiBC2SelectedElement(L) → text5SelectedIndex(L) → vSelectedIndex(L1) → wPolygon(C, A, B) → poly1, b, c, a_1Angle(poly1) → α, β, γPolygon(A, C, 4) → poly2, d, e, g, h, D, EPolygon(C, B, 4) → poly3, i, j, k, l, F, GPolygon(B, A, 4) → poly4, m, n, p, r, H, ISegment(J, A) → aPoint(a) → KIntersect(n, p) → MSegment(K, M) → sPoint(s) → NIntersect(p, r) → OSegment(N, O) → tPoint(t) → PPoint(r) → QSegment(P, Q) → b_1Intersect(g, h) → TPoint(g) → UIntersect(k, l) → VPoint(k) → WSegment(C, W) → c_1Segment(B, V) → d_1Segment(M, R) → e_1Segment(A, S) → f_1Segment(Z, B) → g_1Point(e_1) → C_1Segment(O, C_1) → h_1Segment(A, D_1) → i_1Point(i_1) → E_1Segment(T, E_1) → k_1Point(k_1) → F_1Segment(F_1, U) → l_1Point(l_1) → G_1Segment(G_1, C) → j_1If(ans1 ≟ 37, true, false) → AB2If(ans2 ≟ 25, true, false) → AC2If(ans5 ≟ 43, true, false) → AC2kaiBC2If(ans3 ≟ 18, true, false) → BC2