Find the distance between two coordinate points ex 2

The video tutorial explains how to find the distance between two points using the distance formula. It begins with an introduction to the formula, followed by an explanation of coordinate points and the use of subscripts to differentiate them. The tutorial then provides a step-by-step application of the formula with a specific example, concluding with a summary of the process and the final result.

Why is the final answer left as an approximated value?

What is the result of the calculation for the distance between the two points?