Answer all the questions below and press submit to see how many you got right.
Number : A number $x$ is a mathematical symbol representing a quantity.
Square : A square is a quadrilateral with four right angles and four equal length sides. A square is a special case of a rectangle and a special case of a rhombus.
Square root : The square root of $x$ denoted by $\sqrt{x}$ is the positive number such that $(\sqrt{x})^2=\sqrt{x}\cdot \sqrt{x}=x.$ For example $\sqrt{9}=3.$
What is $\sqrt{1},$ i.e. find the number $x>0$ so that $x^2=1$?