8.1 Radians
(A) Terminology:
![](http://spmaddmaths.blog.onlinetuition.com.my/wp-content/uploads/sites/3/2013/11/Picture1.png)
(B) Convert degrees to radians:
![](http://spmaddmaths.blog.onlinetuition.com.my/wp-content/uploads/sites/3/2013/11/Picture2.png)
(C) Convert radians to degrees:
![](http://spmaddmaths.blog.onlinetuition.com.my/wp-content/uploads/sites/3/2013/11/Picture3.png)
(A) Terminology:
![](http://spmaddmaths.blog.onlinetuition.com.my/wp-content/uploads/sites/3/2013/11/Picture1.png)
(B) Convert degrees to radians:
![](http://spmaddmaths.blog.onlinetuition.com.my/wp-content/uploads/sites/3/2013/11/Picture2.png)
(C) Convert radians to degrees:
![](http://spmaddmaths.blog.onlinetuition.com.my/wp-content/uploads/sites/3/2013/11/Picture3.png)