Answer:
4
Step-by-step explanation:
4 squared, which is the same thing as 4 times 4, is 16.
[tex]4^2=16[/tex] or [tex]4 * 4 = 16[/tex]
you can check your answer by finding the square root of 16.
[tex]\sqrt{16}=4[/tex]
i hope this helps! have a nice day <3