Question

general equation of circle​

Answer 1

Answer:

The center-radius form of the circle equation is in the format (x – h)2 + (y – k)2 = r2, with the center being at the point (h, k) and the radius being "r". This form of the equation is helpful, since you can easily find the center and the radius

Step-by-step explanation:

Answer 2

Answer:

x^2 + y^2 = r^2

Step-by-step explanation:

Here r is radius of circle and x,y are points on it.

For unit circle r=1