Question

The angle of rotation is _____.

https://acvirtual.owschools.com/media/g_geo_ccss_2016/10/geo_10_5a_graph16.gif

Answer 1

any ideas?

Answer 2

Well at first I said 90 degrees... but I am confused about the -90
_________
Here are the answer choices:

90 degrees
-90 degrees
0 degrees

Answer 3

I beleive negative ninety would be going counter clockwise

Answer 4

here you are going clockwise. I would do a little research tho just to be safe.

Answer 5

Okay, thank you!

Answer 6

the sign convention of angular rotation dictates that a counterclockwise rotation is positive and a clockwise rotation is negative

Answer 7

Vocaloid saves the day! I figured I had it confused.