需要 Opera 瀏覽器。
  
Given height and radius calculate Volume, Area of base and Surface Area of cylinder
Given Volume and Height calculate Radius, Area of base and Surface Area of cylinder 
Given Volume and Radius calculate Height, Area of base and Surface Area of cylinder 
- 這個延伸套件能存取你部分網站的資料。
- 這個延伸套件能存取你的頁籤與瀏覽活動。
- This extension can store an unlimited amount of client-side data.
螢幕截圖
關於延伸套件
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