Consider the graph of the circle shown below.
Complete the statement.
Every point on the circle is exactly $\editable{}$ units away from the point
$\left(\editable{},\editable{}\right)$(,)
Write the equation of the circle centred at the origin with a radius of $9$9 units.
What is the radius of the circle with the equation $x^2+y^2=36$x2+y2=36?
State the equation of the circle.