Find the area of the regular polygon in square units. . it’s number 5

The triangle goes into the square 8 times.  Find the area of the triangle and multiply by 8 :) hope this helps, let me know if you need more of an explanation.

Step-by-step explanation:

The triangle goes into the square 8 times.  Find the area of the triangle and multiply by 8

tell me if u need a better explanation :)