Answer:
Each side is 4.5 cm
Step-by-step explanation:

To find the perimeter of a square you add all the sides.
But to find the side length you do the opposite. Which is the equation above.
Hope this helps : )
Answer:
-16
Step-by-step explanation:
it would be 692,000 even though it may look odd since the place holder for 100 is a 0