三角形重心演示

GeoGebra 命令及参数

1. Polygon({(-10, -10), (-10, 10), (10, 10), (10, -10)}) → viewBox
2. PointIn(viewBox) → A
3. PointIn(viewBox) → B
4. PointIn(viewBox) → C
5. Segment(A, B) → AB
6. Segment(C, A) → AC
7. Segment(C, B) → BC
8. Midpoint(BC) → midpointBC
9. Segment(A, midpointBC) → medianA
10. Segment(B, midpointBC) → BtoMidpointBC
11. Segment(C, midpointBC) → CtoMidpointBC
12. LaTeX("\text{Drag points \(A\), \(B\), and \(C\) in order to explore the triangle's centroid.}") → TEXT
13. Midpoint(A, C) → midpointAC
14. Midpoint(A, B) → midpointAB
15. Segment(B, midpointAC) → medianB
16. Segment(C, midpointAB) → medianC
17. Segment(A, midpointAC) → AtoMidpointAC
18. Segment(A, midpointAB) → AtoMidpointAB
19. Segment(C, midpointAC) → CtoMidpointAC
20. Segment(B, midpointAB) → BtoMidpointAB
21. Centroid(Polygon[A, B, C]) → centroid