Trigonometry

Complete the crossword, then click on "Check" to check your answers. If you are stuck, you can click on "Hint" to get a free letter. Click on a number in the grid to begin the crossword.
   1             2    
     3             
        4          
                
                
                
   5               
                
                
                
 6                 
                
    7      8       9     
                
                
10                  
           11