全等三角形 by Guillermo Bautista

GeoGebra 命令及参数

1. Segment(A, B) → a
2. Point(a) → C
3. Polygon(A, C, 3) → poly1, b, a_1, c, D
4. Polygon(C, B, 3) → poly2, d, c_1, b_1, E
5. Segment(D, B) → e
6. Segment(A, E) → f
7. Polygon(A, C, E) → poly3, e_1, a_2, c_2
8. Rotate(A, (-α), C) → A'
9. Rotate(C, (-α), C) → C'
10. Rotate(E, (-α), C) → E'
11. Polygon(A', C', E') → poly3', e', a', c'
12. Segment(D, C) → g
13. Segment(D, A) → h