新勾股定理

GeoGebra 命令及参数

1. Circle(A, a) → c
2. Point(c) → C
3. Line(C, A) → f
4. Intersect(c, f, 2) → D
5. Polygon(C, D, 7) → poly3, f_1, S, T, U, g_1, h_1, i_1, j_1, k_1, l_1, Q, R
6. Point(c) → B
7. Segment(B, C) → g
8. Point(f) → E
9. Rotate(E, 90°, C) → E'
10. Point(f) → F
11. Segment(B, D) → h
12. Polygon(D, B, 7) → poly1, i, I, J, K, j, k, l, m, n, p, G, H
13. Polygon(B, C, 7) → poly2, q, N, O, P, r, s, t, b, d, e, L, M
14. PointIn(poly2) → Pointpoly2_1
15. PointIn(poly1) → Pointpoly1_1
16. PointIn(poly3) → Pointpoly3_1
17. Perimeter(poly1) → perimeterpoly1
18. PointIn(poly1) → Pointpoly1
19. Perimeter(poly2) → perimeterpoly2
20. PointIn(poly2) → Pointpoly2
21. Perimeter(poly3) → perimeterpoly3
22. PointIn(poly3) → Pointpoly3