Answer:
40cm
Step-by-step explanation:
We know that the formula for area of a square is side length squared or [tex]s^2[/tex]
In this case, [tex]s^2=100[/tex]. So we can go through the following steps in order to solve for s
[tex]s^2=100\\\sqrt{s^2} =\sqrt{100} \\\\s=10[/tex]
If one side equals 10, and we know all squares have 4 equal sides, then we can multiple 10 * 4 or add 10+ 10 + 10 + 10.
Our outcome is 40!
