相似三角形机

GeoGebra 命令及参数

1. OrthogonalLine(A, a_1) → b_1
2. Intersect(a_1, b_1) → A'
3. Segment(A', A) → a'
4. OrthogonalLine(B, xAxis) → d
5. Intersect(d, c) → B'
6. Segment(B', B) → b
7. Line(A', O) → e
8. OrthogonalLine(B', yAxis) → f
9. Intersect(e, f) → C'
10. Segment(B', C') → g
11. OrthogonalLine(C', g) → h
12. Intersect(h, xAxis) → C
13. Segment(C', C) → i
14. Polygon(A', O, A) → poly1, a_2, a, o
15. Polygon(O, C', C) → poly2, c_1, o_1, c'