Step 1:
The distance between two points $(x_1, y_1)$ and $(x_2, y_2)$ in a plane is given by the formula:
$$d(P, Q) = \sqrt{(x_2 - x_1)^2 + (y_2 - y_1)^2}$$
Substitute the given points $P(-6,-5)$ and $Q(6,10)$ into the formula:
$$d(P, Q) = \sqrt{(6 - (-6))^2 + (10
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