1) What is polygon? 2) What makes up a polygon? 3) Points where the line segment meets? 4) Formed by the adjacent sides? 5) Where does the word polygon came from? 6) Defined as a flat or plane, two-dimensional closed shape with straight sides? 7) What does the side of polygon represents?

排行榜

視覺風格

選項

切換範本

恢復自動保存: ?