判断三角形相似性

GeoGebra 命令及参数

1. Point(xAxis) → windowPosition
2. Segment(sizeLeft, sizeRight) → sizeLine
3. Point(sizeLine) → sizePoint
4. Polygon((x(windowPosition), y(Corner[1])), Corner[2], Corner[3], (x(windowPosition), y(Corner[4]))) → window, windowBottom, windowRight, windowTop, windowleft
5. Segment(sliderTop, sliderBottom) → sliderLine
6. Point(sliderLine) → sliderPoint
7. Point(Circle[A, 4.5]) → B_{build}
8. Segment(A, B_{build}) → a
9. Circle(B_{build}, 4.5) → c
10. Circle(A, 6) → d
11. Intersect(d, c) → C_1, C, ,
12. Point(Circle[D, (size * 6)]) → E
13. Segment(D, E) → b
14. Circle(E, (size * 7.5)) → e
15. Circle(D, (size * 10)) → f
16. Intersect(e, f) → F_1, F, ,
17. Segment(B_{build}, C) → g
18. Segment(C, A) → h
19. Segment(D, F) → i
20. Segment(E, F) → j
21. Segment(A, B_{build}) → k
22. Segment(B_{build}, C) → l
23. Segment(C, A) → m
24. Segment(D, E) → n
25. Segment(E, F) → p
26. Segment(F, D) → q
27. TableText({{"\frac{\textcolor{#000099}{\mathit{AB}}}{\textcolor{#000099}{\mathit{DE}}}", "=", "\frac{4.5}{6}", "=", "\frac{3}{4}"}, {"\frac{\textcolor{#006633}{\mathit{BC}}}{\textcolor{#006633}{\mathit{EF}}}", "=", "\frac{4.5}{7.5}", "=", "\frac{3}{5}"}, {"\frac{\textcolor{#FF0000}{\mathit{AC}}}{\textcolor{#FF0000}{\mathit{DF}}}", "=", "\frac{6}{10}", "=", "\frac{3}{5}"}}, "rcccl") → text3
28. TableText({{"\frac{\textcolor{#000099}{\mathit{AB}}}{\textcolor{#000099}{\mathit{DE}}}", "=", (("\frac{4.5}{" * b) * "}"), "=", FractionText[shortest]}, {"\frac{\textcolor{#006633}{\mathit{BC}}}{\textcolor{#006633}{\mathit{EF}}}", "=", (("\frac{4.5}{" * j) * "}"), "=", FractionText[middle]}, {"\frac{\textcolor{#FF0000}{\mathit{AC}}}{\textcolor{#FF0000}{\mathit{DF}}}", "=", (("\frac{6}{" * i) * "}"), "=", FractionText[longest]}}, "rcccl") → text4