下載 APKPure App
可在安卓獲取PENTAGON的歷史版本
三角形，正方形和其他多邊形
Polygon area problems generated by random numbers.
Graphic display.
Polygon division in triangles to solve area problems.
三角形，正方形和其他多邊形
Polygon area problems generated by random numbers.
Graphic display.
Polygon division in triangles to solve area problems.