探究平行线

GeoGebra 命令及参数

1. Element({-5, -4, -3, -2, -1, 1, 2, 3, 4, 5}, m) → actualM
2. Polygon({(-11, -11), (-11, 11), (11, 11), (11, -11)}) → viewBox
3. PointIn(viewBox) → A
4. PointIn(viewBox) → B
5. Line(A, baseLine) → line1
6. Line(B, baseLine) → line2
7. Slope(line1) → slope1
8. LaTeX("\text{Tilt}") → tilt
9. Slope(line2) → slope2
10. LaTeX("\textbf{Question: }How are parallel lines related?") → QUESTION
11. LaTeX("\textbf{Instructions: }Lines 1 and 2 are parallel. Move the points and tilt the lines to\\investigate how they are related.") → INSTRUCTIONS
12. Text("\textbf{Line \(1\)}", A + (-3.5, 0.5), true, true) → line1Label
13. Text("\textbf{Line \(2\)}", B + (-3.5, 0.5), true, true) → line2Label
14. Segment(A, C) → f
15. Segment(B, D) → g