Erina.
Sona plotted a point where the distance between the polar axis and the ray equals units.
Erina plotted units along the termianal side of the angle.
![\"\"](\"/userfiles/image/steps_images/step1.JPG\")
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=0d25261cbf81e1c8bf5afdeff1f7b3e9.png\")
units.![\"\"](\"http://www.mathskey.com/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=0d25261cbf81e1c8bf5afdeff1f7b3e9.png\")
units along the termianal side of the angle.![\"\"](\"/userfiles/image/steps_images/solution.JPG\")