Question

Which number is IRRATIONAL?
A) Square root of 25
B) Sqauare root of 32
C) Square root of 49
D) Square root of 64

Answer 1

\[\sqrt{25} = 5\]
\[\sqrt{32} = 5.656854...\]
\[\sqrt{49} = 7\]
\[\sqrt{64} = 8\]

Irrational number is a number that cannot be expressed as an integer or a fraction. (an integer is any number -1, 0, 1, 2 etc.

The correct answer is B) Sqauare root of 32