Hi I need some help answering this question

The perimeter of a regular hexagon is the sum of its six sides. But since the hexagon is regular, the sides are all the same length, so the sum of the sides is actually six times the length of one side.

Using the given side FK, we can observe that F and K have the same y coordinate, so their distance is the absolute value of the difference of their x coordinates:

So, this hexagon has side 3 and perimeter