Question

what is the equation of circle in 3D??

Answer 1

in 3d its not circle.,its sphere dude
question invalid.............

Answer 2

you got 3 squares variables instead of 2

Answer 3

or, its the circle equation, stating that z=0

Answer 4

what if the circle is tilted and lies in a plane

Answer 5

3D figure is known sphere its not circle and its equation is x^2+y^2+z^2=r

Answer 6

no but i am asking cirle in 3D

Answer 7

as a hunch, you would prolly want to define it in spherical coords

Answer 8

i have no idea at the moment how to accomplish that, but it might work :)

Answer 9

the other way i got in my head, is to define the plane and establish the circle within it in some manner ....

Answer 10

i am sorry i have no idea