May you help me with this problem?

@LarsEighner
@FriedRice
@phi

Question

May you help me with this problem? 
 
@LarsEighner 
@FriedRice  
@phi

cggurumanjunath · Answer

a

anonymous · Answer

I got A as well, but I got stuck with option c.

phi · Answer

oh wait!  Q to Q'  is 90º clockwise  or  270º cow

anonymous · Answer

A. is counterclockwise though not clockwise :/

I thought it has rotated clockwise 90 degrees
or it has rotated counter clockwise 270 degrees

anonymous · Answer

Ya, you got what I meant; so wouldn't it be C?

phi · Answer

a clock goes |dw:1407264258900:dw|

phi · Answer

Yes, it is C

phi · Answer

it's easy (for me) to get confused!

anonymous · Answer

Can you explain to me the difference between where it would fall if it was D, instead of C?

phi · Answer

90º is ¼ of the way around the circle.
if we pick the "middle" of the figure (and not worry about anything else)
90º clockwise would put us where Q' is
another 90º would put us in the 3rd quadrant
a final 90º would put us in the 2nd quadrant

phi · Answer

|dw:1407264495837:dw|