三角形分类

GeoGebra 命令及参数

1. Point(xAxis) → PEEPST
2. Polygon({PP1, PP2, PP3, PP4}) → peep
3. SelectedIndex(ddClassType) → isClass
4. SelectedIndex(ddAng) → isAng
5. SelectedIndex(ddLati) → isLati
6. PointIn(peep) → A
7. Circle((0, 0), A) → c
8. PointIn(peep) → B
9. PointIn(peep) → BI
10. LineBisector(A, BI) → asseABI
11. Point(Segment[intAs(1), intAs(2)]) → CI
12. Polygon(A, BI, CI) → triIso, isoABI, isoBICI, isoACI
13. Polygon(A, B, 3) → triEqui, equilAB, equilBC, equilAC, C
14. PointIn(peep) → BS
15. PointIn(peep) → CS
16. Polygon(A, BS, CS) → triScal, scalAB, scalBC, scalAC
17. Segment(A, B) → segmAB
18. Circle(Midpoint[A + (0.1 * UnitVector[Segment[A, B]]), B - (0.1 * UnitVector[Segment[A, B]])], (0.5 * Distance[A + (0.1 * UnitVector[Segment[A, B]]), B - (0.1 * UnitVector[Segment[A, B]])])) → accOtt
19. PointIn(accOtt) → CO
20. Polygon(A, B, CO) → triOttu, ottAB, ottBC, ottAC
21. InteriorAngles(triOttu) → α, β, γ
22. Circle(A, Distance[A, B]) → circAB
23. Segment(AAC + (0.2, 0), (x(PP2) - 0.2, y(AAC))) → segmAcu
24. Point(segmAcu) → BAC
25. Midpoint(AAC, BAC) → K
26. Distance(K, BAC) → r
27. Circle(K, r) → circAcu
28. Circle(Midpoint[A, B], (0.5 * Distance[A, B])) → circRett
29. Point(circRett) → CR
30. Polygon(A, B, CR) → triRett, rettAB, rettBC, rettAC
31. InteriorAngles(triRett) → δ, ε, ζ
32. OrthogonalLine(B, segmAB) → perpB
33. OrthogonalLine(A, segmAB) → perpA
34. Point(perpA) → D
35. Point(perpB) → E
36. Slope(perpA) → sloA
37. PointIn(acutSi) → CA
38. Polygon(AAC, BAC, CA) → triAcu, acuAB, acuBC, acuAC
39. InteriorAngles(triAcu) → η, θ, ι