量角器测角练习

GeoGebra 命令及参数

1. Sequence(i°, i, 0, 180) → listAns
2. Point(Circle[A, 5]) → B
3. Polygon(A, B, C, D, E, F, B, A) → poly1, a, b, c, d, e, f, b_1, a_1
4. Sequence(Rotate[(1, 0), i°, (0, 0)], i, 15, 360, 15) → list1
5. RandomElement(list1) → O
6. Sequence(Rotate[O + (6, 0), θ°, O], θ, 0, 359) → list2
7. RandomElement(list2) → P
8. Rotate(P, Random[5, 180]°, O) → Q
9. Segment(O, P) → g
10. Segment(O, Q) → h
11. SelectedElement(listAns) → Ans
12. Angle(P, O, Q) → α
13. Textfield(Ans) → inputBox1