In this one there were a decent amount of edits so i decided to photoshop

 

All of the answers are correct, however include the steps in between where I skipped on the key to gain all 18 points

This test is curved to 18/17

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

the pi/4 should be pi/3