$\"\"$

The standard form of circle is $\"\"$ , where center is $\"\"$ and $\"\"$ is the radius of the circle.

Center of the circle $\"\"$ .

The point $\"\"$ lies on the circle.

The distance between the point $\"\"$ and $\"\"$ is equal to the radius of the circle.

Find the radius of the circle.

$\"\"$

Radius $\"\"$ .

$\"\"$

Substitute $\"\"$ and $\"\"$ in $\"\"$ .

$\"\"$

The circle equation is $\"\"$ .

$\"\"$

The standard form of the circle equation is $\"\"$ .