[dragoonvenganc]

Kammy i know.. u dont have to be a jerk about it..
I know thats pyathgoem theom.. but its refeared to as distance formula because it gives u the value of the hypotenuse which is distance from point a to point b..

and of course a circle can be considered many trigangles u can just rotate the triangle.. if u have taken trig u would easly know

Yes i in 11th taking trig and precal both.