圓內接等邊三角形和正六邊形 Equilateral Triangles and Regular Hexagons Inscribed in Circles

拖拉以下兩幅圖形的點，看看動態效果有甚麼不同。[br]你能構作這兩幅圖嗎？[br]Drag the points in the two figures below to see the effects.[br]Can you construct these two figures?
[b]課業 Task [/b][br]構作以下的正六邊形，並啟動動畫。[br]Construct the following regular hexagon and start the animation.
– GeoGebra Institute of Hong Kong

Information: 圓內接等邊三角形和正六邊形 Equilateral Triangles and Regular Hexagons Inscribed in Circles