直角三角形关系

GeoGebra 命令及参数

1. Polygon(A, B, C) → t1, c_1, a_1, b_1
2. Polygon(C, A, 4) → poly1, f, g, h, i, D, E
3. Polygon(A, B, 4) → poly2, j, k, l, m, F, G
4. Polygon(B, C, 4) → poly3, n, p, q, r, H, I
5. PointIn(poly3) → Pointpoly3_1
6. PointIn(poly3) → Pointpoly3_2
7. PointIn(poly3) → Pointpoly3_3
8. PointIn(poly2) → Pointpoly2_1
9. PointIn(poly1) → Pointpoly1_1
10. PointIn(poly2) → Pointpoly2_2
11. Perimeter(t1) → perimetert1
12. PointIn(t1) → Pointt1
13. Angle(C, A, B) → α
14. Rotate(B, 90°, A) → B'
15. Rotate(B, (-(90°)), A) → B'_1
16. Angle(B'_1, A, B) → β
17. PointIn(poly3) → Pointpoly3
18. PointIn(poly2) → Pointpoly2
19. PointIn(poly1) → Pointpoly1
20. Distance(B, c_1) → distanceBc1