Dynamic Geometric Illustration by Tim Brzezinski (3)
Loading the math board and drawing, please wait…
This example dynamically demonstrates a problem posted by Antonio Gutierrez on Twitter, integrating geometry and arithmetic through adjustable illustrations. It covers core concepts like planes, pie charts, geometric constructions, arithmetic operations, and upper/lower sums or Riemann sums. The construction utilizes commands such as Point, Semicircle, Segment, Angle, Rotate, Ray, Intersect, Distance, Polygon, Midpoint, Circle, Dilate, CircleSector, Line, Vector, and Translate. Suitable for high school students and math enthusiasts exploring geometric transformations and integral concepts.
GeoGebra Commands & Parameters
Point(xAxis) → APoint(xAxis) → BSemicircle(A, B) → cPoint(c) → CSegment(A, C) → fSegment(C, B) → gSegment(B, A) → hAngle(B, A, C) → αRotate(B, (2 * α / 3), A) → B'Angle(B, A, B') → βRay(A, B') → iIntersect(g, i) → DAngle(C, B, A) → γRotate(A, γ, D) → A'Angle(A, D, A') → δRay(D, A') → jIntersect(h, xAxis) → EIntersect(h, j) → FDistance(D, F) → distanceDFDistance(D, C) → distanceDCSegment(A, D) → kSegment(D, F) → lPolygon(A, C, B) → t1, b, a, c_1Rotate(B, β / 2, A) → B'_1Angle(B, A, B'_1) → εRay(A, B'_1) → mIntersect(g, m) → GSegment(A, G) → nIntersect(l, n) → HMidpoint(A, H) → ISegment(A, I) → pMidpoint(l) → JCircle(A, (0.5 * p)) → dCircle(B, (0.25 * l)) → qAngle(A, C, B) → ζIntersect(d, h) → K,Intersect(d, p) → L,Dilate(A, If[0 < o ≤ 1, 1 - o, 0], I) → A'_1Segment(A, A'_1) → rDilate(A, If[1 < o ≤ 2, 2 - o, 0], D) → A'_2Segment(A, A'_2) → sDilate(F, If[1 < o ≤ 2, 2 - o, 0], J) → F'Segment(F, F') → tDilate(J, If[2 < o ≤ 3, 3 - o, 0], D) → J'Segment(J, J') → f_1Dilate(D, If[3 < o ≤ 4, 4 - o, 0], C) → D'Dilate(D, If[3 < o ≤ 4, 4 - o, 0], B) → D'_1Segment(D, D') → g_1Segment(D, D'_1) → h_1Intersect(q, g) → M,Intersect(q, h) → N,Rotate(K, If[4 < o ≤ 5, ((o - 4) * ε), ε], A) → K'CircleSector(A, K, K') → d_1Rotate(d_1, If[6 < o ≤ 7, ((o - 6) * ε), ε], A) → e_1Rotate(e_1, If[8 < o ≤ 9, ((o - 8) * ε), ε], A) → k_1Rotate(M, If[11 < o ≤ 12, ((o - 10) * δ), δ], B) → M'Rotate(M, If[10 < o ≤ 11, ((o - 10) * δ), δ], B) → M'_1CircleSector(B, M, M'_1) → p_1Midpoint(D, B) → OLine(B, f_1) → i_1Circle(B, 1) → q_1Intersect(q_1, i_1, 1) → PAngle(A, B, P) → κDilate(B, If[11 < o ≤ 12, 12 - o, 0], O) → B'_2Vector(B, B'_2) → uTranslate(p_1, u) → eRotate(e, If[12 < o ≤ 13, ((o - 12) * κ), κ], O) → e'Dilate(O, If[13 < o ≤ 14, 14 - o, 0], D) → O'Vector(O, O') → vTranslate(e', v) → e''Angle(C, D, F) → λRotate(D, If[15 < o ≤ 16, ((o - 15) * λ), λ], D) → D'_2Rotate(D', If[15 < o ≤ 16, ((o - 15) * λ), λ], D) → D''Segment(D'_2, D'') → j_1Dilate(D, If[16 < o ≤ 17, 17 - o, 0], J) → D'_3Vector(D, D'_3) → wTranslate(D, w) → D'_4Translate(D', w) → D''_1Segment(D'_4, D''_1) → l_1Rotate(D'_4, If[17 < o ≤ 18, ((o - 17) * λ), λ], J) → QRotate(D''_1, If[17 < o ≤ 18, ((o - 17) * λ), λ], J) → RSegment(Q, R) → m_1