Side Length Quotients in Similar Triangles
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This example demonstrates the side length quotients in similar triangles. The key mathematical concepts involved are the properties of similar triangles. Using GeoGebra commands such as Polygon, AngularBisector, Intersect, etc., similar triangles can be constructed and the side length quotients observed. Suitable for middle or high school students learning about similar triangles.
GeoGebra Commands & Parameters
Polygon(A, B, D) → poly1, c, a, bAngularBisector(c, b) → f, gAngularBisector(c, a) → d, eIntersect(e, g) → EAngle(A, B, D) → αAngle(B, A, D) → βAngle(B, D, A) → γCircle(A', Segment[A', B']) → hCircle(D', Segment[D', B']) → kIntersect(h, k, 2) → FPolygon(B', A', F, D') → poly2, b', a', f_1, d'Segment(A', D') → iCircle(A', 3) → pPoint(p) → GSegment(G, A') → jAngle(D', A', G) → ΘRotate(B', Θ - 180°, A') → B''Rotate(A', Θ - 180°, A') → A''Rotate(F, Θ - 180°, A') → F'Rotate(D', Θ - 180°, A') → D''Polygon(B'', A'', F', D'') → poly2', b'', a'', f', d''Polygon(B'', A', D'') → poly3, d''_1, b''_1, a'_1Polygon(A', F', D'') → poly4, d''_2, a'_2, f'_1OrthogonalLine(A', b''_1) → lPoint(l) → HSegment(H, A') → mAngle(D'', A', B'') → δAngle(A', B'', D'') → εAngle(B'', D'', A') → ζMidpoint(d''_1) → IMidpoint(a'_1) → JMidpoint(b''_1) → KMidpoint(d''_2) → LMidpoint(a'_2) → MAngle(A', D'', F') → θLine(A', xAxis) → b_1Intersect(p, b_1, 1) → OAngle(F', A', D'') → ιAngle(D'', F', A') → κTextfield(scale) → inputBox1Textfield(scale) → inputBox1_1Textfield(scale) → inputBox1_2