This is a very hard question but, i am a very hard man.
<h2>Area of a square = side × side</h2>
Let the side = x

<h3>Length of each side = <u>8</u><u> </u><u>units</u></h3>
.... Hope this will help....
The Square Root Of 8100 Is 90. That Will Be The Only Square Root Because The Square Root Of 90 Is A Decimal So You Would Stop There.
Use math-way it will give u all the answers u need
3 bags = 16 m
1 bag = 5/1/3 m
5 bags = 26 m 40 seconds
i am a mathematics teacher. if anything to ask please pm me