Unlabeled Surface Area
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This example demonstrates the calculation of surface area for irregular curved surfaces. Key math concepts include area computation, continuity, circles, matrices, roots, and general quadrilaterals. GeoGebra commands used in construction are Vector, Translate, Polygon, Line, Intersect, and Midpoint. Suitable for high school and above students to understand surface area calculations of complex geometric shapes.
GeoGebra Commands & Parameters
Vector(A, B) → uVector(A, C) → vVector(A, D) → wTranslate(E, Vector[(height * u)]) → E'Vector(E, E') → zTranslate(E, Vector[(width * w)]) → E'_1Translate(E, Vector[(length * v)]) → E'_2Translate(E'_2, Vector[(height * u)]) → FTranslate(E'_1, Vector[(height * u)]) → GPolygon(F, E'_2, E, E') → poly1, f, e'_2, e, e'Polygon(E, E'_1, G, E') → poly2, e_1, e'_1, g, e'_3Line(F, g) → dLine(G, e') → hIntersect(d, h) → HPolygon(F, E', G, H) → poly3, f_1, e'_4, g_1, h_1Polygon(J, I, K, L) → poly4, j, i, k, lPolygon(N, J, I, M) → poly5, n, j_1, i_1, mPolygon(N, P, O, M) → poly6, n_1, p, o, m_1Polygon(Q, R, N, J) → poly7, q, r, n_2, j_2Polygon(T, S, I, M) → poly8, t, s, i_2, m_2Polygon(V, U, O, P) → poly9, v_1, u_1, o_1, p_1Midpoint(e'_2) → WMidpoint(e_1) → ZMidpoint(e'_1) → A_1Midpoint(v_1) → B_1Midpoint(u_1) → C_1Midpoint(o) → D_1Midpoint(m_2) → E_1Midpoint(t) → F_1