<span>idk if this exactly correct but i tried
1 Find and add the lengths of all the polygon's sides
2.Multiply the lengths of equal sides by the number of equal sides.
3 Multiply a regular polygon's side length by the number of sides.
4 Alternatively, use the area and apothegm of the polygon.
</span>
I found someone with the same question as you here is the answer, GOOD LUCK!
The answer is the third choic, or the line with the same slope.
Divide 6 by 3 and get 2
2 PARTS WILL TAKE UP 1/3 OF THE HEXAGON