正弦定理与余弦定理自查

GeoGebra 命令及参数

1. Conic(A_1, B_1, C_1, D, E) → c_2
2. Conic(F, G, H, I, J) → d
3. Conic(K, L, M, N, O) → e
4. RandomPointIn(c_2) → B
5. RandomPointIn(d) → C
6. RandomPointIn(e) → A
7. Polygon(A, C, B) → t1, b, a, c
8. Segment(C, B) → f
9. Segment(B, A) → g
10. Segment(A, C) → h
11. Angle(B, A, C) → α
12. Angle(A, C, B) → β
13. Angle(C, B, A) → γ