Question

Which number below is not an irrational number? A. π B. √2 C. √4 D. √6

Answer 1

Irrational numbers usually possess an unending decimal. Irrational numbers cannot be expressed as a fraction for example x/y where y is not equal to 0. Example of irrational numbers are

$\begin{gathered} \sqrt[]{2} \\ \pi \end{gathered}$

The only number that is not an irrational number from the option is

$\sqrt[]{4}$