Answer:
22.361
Step-by-step explanation:
The square root of 500 is 22.360679775
Make sure to round the number up or down according to the right number of decimals
22² = 484
23² = 529
A quick way to double check your work is to find two numbers nearest your square to find a number that matches for the solution if you plug it in.
Be careful not to confused perimeter with area. Perimeter for a square is P = 4x where area is A = x². Think of a perimeter as if you have to walk the perimeter of a building you would walk around the building, but if you were laying new tiles in your basement, you need to know the area, the amount of space inside the perimiter.
