Hello!
Answer:

Explanation:
The distance between two points can be found using the distance formula:

Where:
(x1, y1) and (x2, y2) are the coordinates of the two points.
In our case:

Let's replace x1, y1, x2 and y2 by 9, 4, 2 and 10:

Conclusion:
The distance between the points (9,4) and (2,10) is √85.