# Connect the curve 3

**Calculus**Level 3

In this figure, the complete black circle is a circle of equation \({ \left( x-9 \right) }^{ 2 }+{ \left( y-7 \right) }^{ 2 }=2\)

The red line below it is of the equation x=8, with range restrictions \(0<y\le4\).

If AB touches both the circle and the red straight line and is the shortest of its kind, then its length can be written as \[\sqrt { A } \left( \sqrt { B } -C \right) \]

If A, B, C are integers with A and B being square free, find A+B+C.

See the full image from here