價格：免費
更新日期：2015-02-26
檔案大小：1.9M
目前版本：1.3
版本需求：Android 3.2 以上版本
官方網站：mailto:support@masterr.co.uk
A circle with a radius of 1 in the centre of a grid, this app lets you explore trigonometry by allowing you to see the sides of a right angled triangle shrink and expand as it goes around the circle.
