Answer is 13.4 distance between the points
Step by step
These two points create a right triangle
With leg a = 12 and leg b = 6
We can solve this distance using Pythagorean theorem
a^2 + b^2 = c^2
12^2 + 6^2 = c^2
144 + 36 = c^2
180 = c^2
√180 = c
solve
13.4 = c (distance between the points)