The trigonometric angle is .
A coterminal angle of .
The terminal side of the angle lies in Quadrant III ,
the reference angle is .
The reference angle is .
![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/step1.JPG\")
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=3a43910a414450a483b6a562da6dc2cb.png\")
. ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=9e932c3b5e64bda71fc79841b60312e6.png\")
.![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=e7c781231a59c1b36c9f5db5a034b92b.png\")
is ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=7d03fecdcfd66652a5f00ed242b040a9.png\")
.![\"graph](\"/userfiles/image/Library/Algebra%202/graph%20of%20the%20trigonametry%20degrees225.gif\")
![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/solution.JPG\")
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=02d17b7410850a417dc36f13a6dbe4a2.png\")
.