Respuesta :

Answer:

y^2 + x^2 = 8^2

Step-by-step explanation:

Mathematically the equation of a circle is written as;

(y-a)^2 + (x-b)^2 = r^2

Where (a, b) = (0,0)

r = 8

Substituting these values, we have ;

y^2 + x^2 = 8^2

x^2 + y^2 = 64