矩形面积与点位置关系

GeoGebra 命令及参数

1. Intersect(xAxis, yAxis) → I
2. Circle(I, a) → c_1
3. OrthogonalLine(I, yAxis) → b_1
4. Intersect(c_1, b_1, 1) → H
5. OrthogonalLine(I, b_1) → d
6. OrthogonalLine(H, b_1) → e
7. Circle(I, b) → f
8. Circle(H, c) → g
9. Intersect(f, d, 1) → E
10. Intersect(g, e, 1) → T
11. OrthogonalLine(E, d) → i
12. OrthogonalLine(T, e) → j
13. Segment(I, H) → k
14. Segment(I, H) → l
15. Point(l) → M
16. OrthogonalLine(M, l) → h
17. OrthogonalLine(E, h) → m
18. OrthogonalLine(T, h) → n
19. Intersect(h, n) → A
20. Intersect(h, m) → L
21. Polygon(I, E, L, M) → poly1, i_1, e_1, l_1, m_1
22. Polygon(M, A, T, H) → poly2, m_2, a_1, t, h_1