相似三角形 by cemccourseware

GeoGebra 命令及参数

1. Rotate(J, α, A) → J'
2. UnicodeToLetter(10007) → xmark
3. UnicodeToLetter(10003) → cmark
4. Polygon(A, B, C) → t1, c, a, b
5. Ray(A, J) → base1
6. Ray(A, J') → base2
7. Ray(D, K) → similar1
8. Point(similar1) → F
9. Ray(D, K') → similar2
10. Point(similar2) → E
11. Polygon(D, F, E) → t2, f, e, g
12. Angle(C, A, B) → angleA
13. Angle(F, D, E) → angleD
14. Angle(B, C, A) → angleC
15. Angle(E, F, D) → angleF
16. Angle(A, B, C) → angleB
17. Angle(D, E, F) → angleE
18. LaTeX("\text{\textbf{Question: }What do you notice about the relationship between the side lengths \\of \triangle\(ABC\) and \triangle\(DEF\)?}") → MainInstruc
19. LaTeX("\text{\textbf{Instructions: }Drag point \(F\) to change the size of \triangle\(DEF\).}") → SpecInstruc