Circle Standard Form: The equation of a circle in standard form is (x−h)2+(y−k)2=r2, where (h,k) is the center of the circle and r is the radius. The given equation is already in standard form with h=0 and k=0, which means the center is at the origin (0,0).
Identify Radius: To find the radius, we compare the given equation x2+y2=36 to the standard form equation and identify the value of r2. In this case, r2=36.
Calculate Radius: To find the radius r, we take the square root of both sides of the equation r2=36. The square root of 36 is 6, so r=6.
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