Answer:
x²+y²=6² or x²+y²= 36
Step-by-step explanation:
Equation of the circle
(x-a)²+(y-b)²=r²
(a, b) - the center of the circle.
We have (0,0).
A point on the circle (0,6). Distance from the center to the circle is 6. So, radius =6.
x²+y²=6² or x²+y²= 36