等腰三角形的性质 by Drew Lazar

GeoGebra 命令及参数

1. Segment(A, B) → f
2. Segment(C, B) → g
3. Segment(A, C) → h
4. Dilate(C, 1 / 3, A) → C'
5. Dilate(A, 1 / 3, B) → A'
6. Dilate(B, 1 / 3, C) → B'
7. Segment(B, C') → i
8. Segment(A, B') → j
9. Segment(A', C) → k
10. Intersect(k, i) → E
11. Intersect(j, i) → D
12. Intersect(k, j) → F
13. Polygon(B, A, C) → t1, c, b, a
14. Polygon(E, D, F) → t2, f_1, d, e
15. Polygon(B, E, F, B') → q2, b_1, d_2, f_2, b'
16. Polygon(F, D, C', C) → q3, f_3, e_2, c', c_1
17. Polygon(B, A', E) → t3, d_3, b_2, l
18. Polygon(D, A, C') → t4, m, e_3, a_2
19. Polygon(B', F, C) → t5, c_2, n, f_4
20. FractionText(q3 / t1) → text8
21. Polygon(E, A', A, D) → q1, e_1, a', a_1, d_1
22. FractionText(q2 / t1) → text10
23. FractionText(q1 / t1) → text12
24. FractionText(t3 / t1) → text14
25. FractionText(t3 / t1) → text16
26. FractionText(t4 / t1) → text18
27. PointIn(q1) → G
28. PointIn(t3) → H
29. PointIn(q2) → I
30. PointIn(t2) → J
31. PointIn(t4) → K
32. PointIn(q3) → L
33. PointIn(t5) → M