The dotted cross

Question

This is a very straightforward puzzle. Here are $25$ dots in a $5times 5$ matrix.
$$
begin{matrix}
cdot & cdot & cdot & cdot & cdot
cdot & cdot & cdot & cdot & cdot
cdot & cdot & cdot & cdot & cdot
cdot & cdot & cdot & cdot & cdot
cdot & cdot & cdot & cdot & cdot
end{matrix}
$$
Just connect 12 dots of these dots to make a cross that has $5$ dots inside it and $8$ dots outside it?
For an editor-guy, here is a screenshot of these dots:

Stiv · Accepted Answer

You can draw a cross that satisfies these constraints like this:

12 dots connected, 5 dots inside, 8 outside. The trick is to realise:

The dotted cross

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