内接圆与直角三角形

GeoGebra 命令及参数

1. Intersect(c, a, 1) → A
2. Intersect(c, a, 2) → B
3. GCD(a1, a2) → b
4. GCD(a2, a3) → d
5. GCD(b, d) → e
6. LaTeX(AB, true, true) → text3
7. LaTeX(BC, true, true) → text4
8. LaTeX(CA, true, true) → text5
9. Intersect(c, f, 1) → C
10. Polygon(C, A, B) → poly1, b_1, c_1, a_1
11. 内接円(A, B, C) → g
12. OrthogonalLine(O_1, b_1) → h
13. Intersect(c, h, 1) → D
14. Intersect(h, b_1) → E
15. Midpoint(D, E) → O_3
16. Circle(O_3, D) → k
17. Center(g) → O_2
18. Textfield(m) → ratio1
19. Textfield(n) → ratio2
20. Angle(A, C, B) → α