等边三角棱柱：几何与体积计算

GeoGebra 命令及参数

1. Point(Circle[A, side]) → B
2. Segment(A, B) → a
3. Polygon(A, B, 3) → poly1, b, a_1, b_1, C
4. Point(Circle[B, height]) → D
5. Segment(B, D) → c
6. Vector(B, D) → u
7. Translate(A, u) → A'
8. Translate(B, u) → B'
9. Translate(C, u) → C'
10. Polygon(A', B', C') → poly1', c', a', b'
11. Polygon(C, C', A', A) → poly2, c_1, c'_1, a'_1, a_2
12. Polygon(A, B, D, A') → poly3, a_3, b_2, d, a'_2
13. Polygon(C, C', D, B) → poly4, c_2, c'_2, d_1, b_3
14. Perimeter(poly1) → Perimeter