價格：免費
更新日期：2017-08-13
檔案大小：3.2M
目前版本：1.0-withads
版本需求：Android 5.1 以上版本
官方網站：http://www.stemcellphone.com
Email：stem@iprcoach.com
聯絡地址：PO BOX 3651 Jerusalem 91035 ISRAEL
This app is for anyone who wants to understand why the area of a circle is PI R squared.
It doesn’t just tell you that as a fact to be remembered - it demonstrates it in a way that you will never forget.
The app starts out by explaining what the area of a geometric shape is, using the simplest such shape – the rectangle. It allows you to change the width and height and see graphically why the area is simply the width times the height. It then continues to a slightly harder case – the right triangle. A graphical demonstration proves that the area is half the width times the height. The final step is to illustrate graphically how to convert any circle into a right triangle with the same area.
