Negative Angles Prepared by Title V Staff: Daniel Judge, Instructor Ken Saita, Program Specialist East Los Angeles College EXIT BACKNEXT © 2002 East Los Angeles College. All rights reserved. Click one of the buttons below or press the enter key
We’ve seen what happens when we generate angles by rotating the initial side counter clockwise. EXIT BACKNEXT
What happens when we rotate the initial sides clockwise? Answer – We consider the angles to be negative! EXIT BACKNEXT
Example – Let’s rotate the initial side clockwise ¼ revolution. EXIT BACKNEXT
Note: -90 and 270 are coterminal! 270° -90° EXIT BACKNEXT
Recall: = n -90 = (-1) -90 = 270 – = -90 Or 270 = (1) 270 = = 270 EXIT BACKNEXT
What does an angle of -135 look like? EXIT BACKNEXT
Answer – First rotate 1/4 revolution clockwise, then rotate 1/8 revolution clockwise. EXIT BACKNEXT
What does an angle of -210 look like? EXIT BACKNEXT
End of Negative Angles Title V East Los Angeles College 1301 Avenida Cesar Chavez Monterey Park, CA Phone: (323) Us At: Our Website: EXIT BACKNEXT