This online calculator might be useful...

Wednesday, November 17, 2010

HW for Nov. 17 (Wed)

1) If you turn ______ degrees, you will end up facing the same way.

2) How many angles exist that are coterminal to 50 degrees?

3) A 90 degree angle intersects the unit circle at what (x,y) coordinate?

4) A 240 degree angle lies in the III quadrant. What would the sign of the coordinates be, at the place where this angle intersects the unit circle?

(+,+)
(+,-)
(-,+)
(-,-)