價格：免費
更新日期：2016-03-18
檔案大小：5.2 MB
目前版本：1.0
版本需求：需要 iOS 9.2 或以上版本。與 iPhone、iPad 及 iPod touch 相容。
支援語言：英語
How's your knowledge of circles?
Probably the most basic, yet mysterious, shape in all of two-dimensional geometry whose study has spanned centuries and whose basic shape has innumerable interesting properties!
And, don't even get started on Pi.
Find out now in a quick fire quiz where you have to score points as quickly as you can to build your high score!
支援平台：iPhone