The formula of an area of a square:

a - a side
We have 
substitute:

Used:

The answer would be 56/299
Number of sides is 6- Hexagon
Sum of interior angles equation- s=(n-2)*180
s= (6-2)*180
s= 4*180
s=720
Sum is 720
Hope this is helpful
629,999 =630,000. Nearest hundred