Find the length of the diameter of the cirlce which passes through the points `(-3, 6), (-5, 2)` and `(3, -6)` .

Explanation

To find the length of the diameter of the circle that passes through the points \((-3, 6)\), \((-5, 2)\), and \((3, -6)\), we will follow these steps:

### Step 1: Write the general equation of a circle
The general equation of a circle is given by:
\[ x^2 + y^2 + 2gx + 2fy + c = 0 \]
where \(g\), \(f\), and \(c\) are constants that we need to determine.
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