Clockwise means turning to your right, counterclockwise is to the left.
(x,y)-> (-y,x)
180 degrees.
Because 180 degrees clockwise is the same as 180 degrees counterclockwise.
90 degrees 90 degrees
It is: 90-83.5 = 6.5 degrees
(x,y)-> (-y,x)
{1 0} {0 -1}
(-1, -4) rotated 90 degrees anticlockwise
The answer will depend on whether the rotation is clockwise or counterclockwise.
Rotating a triangle 90 degrees counterclockwise would involve taking an upright triangle and laying is toward the left on its back. Changing position through rotation can cause a better visualization for some problem solving.
The answer will depend on whether the rotation is clockwise or counterclockwise.
A) Rotate 360 degrees counterclockwise, then shift 1 unit up. B) Rotate 180 degrees counterclockwise, then shift 1 unit down. C)Rotate 90 degrees counterclockwise, then shift 1 unit up. D) Rotate 270 degrees counterclockwise, then shift 1 unit down.
1/4 of 360 degrees = 90 degrees which is a right angle
"East" is a directional term that refers to the direction you would face when observing the sun rise. It can also be found by rotating 90 degrees clockwise from north, or by rotating 90 degrees counterclockwise from south.
Assume we want to find the ordered pair after 90° counterclockwise rotation. From (x,y), we have (-y,x). If we want to find the ordered pair after 90° clockwise rotation, then from (x,y) we have (y, -x)
There are many ways of describing the rule. Perhaps the simplest is to premultiply the coordinates of any point by the matrix:( 0 -1 ) ( 1 0 )
Because 180 degrees clockwise is the same as 180 degrees counterclockwise.