Finding the Area of the Overlapped Region

GeoGebra Commands & Parameters

1. Polygon(B, A, 4) → poly1, b, a_1, c, d, C, D
2. Segment(A, D) → e
3. Segment(B, C) → f
4. Intersect(e, f) → E
5. Circle(E, b) → g
6. Point(g) → F
7. Polygon(E, F, 4) → poly2, e_1, f_1, h, i, G, H
8. Intersect(b, e_1) → I
9. Intersect(a_1, i) → J
10. Polygon(I, A, J, E) → poly3, i_1, a_2, j, e_2
11. Intersect(b, i) → K
12. Intersect(d, e_1) → L
13. Polygon(L, B, K, E) → poly4, l, b_1, k, e_3
14. Intersect(d, i) → M
15. Intersect(c, e_1) → N
16. Polygon(M, E, N, D) → poly5, m, e_4, n, d_1
17. Intersect(c, i) → O
18. Intersect(a_1, e_1) → P
19. Polygon(E, O, C, P) → poly6, e_5, o, c_1, p
20. OrthogonalLine(E, b) → a
21. Point(a) → Q
22. Segment(Q, E) → q
23. Angle(H, E, Q) → α
24. OrthogonalLine(E, a_1) → r
25. Intersect(r, d) → R
26. Segment(E, R) → s
27. Segment(R, L) → t
28. Segment(E, L) → g_1
29. Circle(E, s) → h_1
30. Point(h_1) → S
31. Circle(S, t) → k_1
32. Circle(E, g_1) → p_1
33. Intersect(k_1, p_1, 1) → T
34. Polygon(S, T, E) → poly7, e_6, s_1, t_1
35. Circle(E, s) → q_1
36. Segment(M, R) → j_1
37. Segment(M, E) → l_1
38. Point(q_1) → U
39. Circle(E, l_1) → c_2
40. Circle(U, j_1) → d_2
41. Intersect(c_2, d_2, 1) → V
42. Polygon(E, U, V) → poly9, v, e_8, u
43. Intersect(a, c) → W
44. Segment(E, N) → m_1
45. Segment(W, N) → n_1
46. Segment(E, W) → f_2
47. Circle(E, m_1) → g_2
48. Circle(E, f_2) → p_2
49. Point(q_1) → X
50. Circle(X, n_1) → h_2
51. Circle(E, m_1) → q_2
52. Intersect(h_2, q_2, 1) → Y
53. Polygon(E, X, Y) → poly10, Z, e_9, A_1
54. Intersect(r, a_1) → B_1
55. Segment(E, B_1) → i_2
56. Segment(B_1, P) → j_2
57. Segment(P, E) → l_2
58. Circle(E, l_2) → r_2
59. Circle(E, i_2) → s_2
60. Point(s_2) → C_1
61. Circle(C_1, j_2) → t_2
62. Intersect(r_2, t_2, 1) → D_1
63. Polygon(E, C_1, D_1) → poly11, d_3, e_{10}, c_3
64. Circle(E, i_2) → f_3
65. Point(f_3) → E_1
66. Segment(P, B_1) → m_2
67. Circle(E_1, j_2) → g_3
68. Circle(E, l_2) → h_3
69. Intersect(g_3, h_3, 1) → F_1
70. Polygon(E, F_1, E_1) → poly12, e_{11}, e_{12}, f_4
71. Circle(E, i_2) → k_3
72. Segment(E, J) → n_2
73. Segment(B_1, J) → a_3
74. Circle(E, n_2) → p_3
75. Point(k_3) → G_1
76. Circle(G_1, a_3) → q_3
77. Intersect(p_3, q_3, 1) → H_1
78. Polygon(E, G_1, H_1) → poly13, h_4, e_{13}, g_4
79. Intersect(a, b) → I_1
80. Segment(I_1, E) → b_3
81. Segment(I_1, I) → i_3
82. Segment(I, E) → j_3
83. Circle(E, b_3) → r_3
84. Point(r_3) → J_1
85. Circle(E, j_3) → s_3
86. Circle(J_1, i_3) → t_3
87. Intersect(s_3, t_3, 2) → K_1
88. Polygon(J_1, K_1, E) → poly14, e_{14}, j_4, k_4
89. Segment(K, I_1) → l_3
90. Segment(E, I_1) → m_3
91. Segment(E, K) → n_3
92. Circle(E, m_3) → c_4
93. Circle(E, n_3) → d_4
94. Point(c_4) → L_1
95. Circle(L_1, l_3) → p_4
96. Intersect(d_4, p_4, 1) → M_1
97. Polygon(L_1, E, M_1) → poly15, m_4, l_4, e_{15}
98. Segment(R, E) → a_4
99. Polygon(B, L, E, I_1) → poly8, r_1, b_2, k_2, b_4
100. Polygon(K, B, R, E) → poly16, k_5, b_5, r_4, e_7
101. Polygon(N, D, R, E) → poly17, n_4, d_5, r_5, e_{16}
102. Polygon(W, D, M, E) → poly18, w, d_6, m_5, e_{17}
103. Polygon(W, C, P, E) → poly19, w_1, c_5, p_5, e_{18}
104. Polygon(O, C, B_1, E) → poly20, o_1, c_6, b_6, e_{19}
105. Polygon(I, A, B_1, E) → poly21, i_4, a_5, b_7, e_{20}
106. Polygon(J, A, I_1, E) → poly22, j_5, a_6, i_5, e_{21}
107. PointIn(poly2) → N_1