We will have the following:
*First. We determine a new point that can be used to complete the rigth triangle; we are given the points:
So, a point we could use to form a rigth triangle could be:
And we would have the following triangle:
*Second: We determine the distances:
**Distance on the horizontal axis would be 9 units.
**Distance on the vertical axis would be 8 units.
*Third: We determine the distance betweem the two original points:
So, the distance between the two original points is approximately 12 units.