+8262 To find the answer to square roots, you have to find a number that can be multiplied again to find the answer.
$${\mathtt{Example}}$$
$$\sqrt16=4\\\\\sqrt9=3\\\\\sqrt100=10$$ $$4*4=16\\\\3*3=9\\\\10*10=100$$
There are many more examples, but these are popular.
4 is the answer for the square root of 16.
+118691 Dragon - A LaTex lesson for you.
(1) If you want to write the square root of 16 you must put the 16 in parentheses (curly brackets)
\sqrt{16}
otherwise, only the 1 will be under the square root sign.
(2)
Say you want to write the 4th root of 16, this is how it is done.
\sqrt[4]{16}
$$\sqrt[4]{16}$$ 
A question for Dragon:
What is $$\sqrt[4]{16}$$ Hint: It means $$x*x*x*x = 16$$ Can you find x?
