Question

$\pi$ is

(a) an integer (b) a rational number

(c) an irrational number (d) none of these

Answer 1

π is an irrational number.

$\frac{22}{7}$ is a rational number as is defined a ratio of 2 integers (non-zero denominator).

Many people confuse π with $\frac{22}{7}$. We are taught in schools that π=$\frac{22}{7}$. What they should actually teach is π≈$\frac{22}{7}$. π is irrational. It cannot be represented as a ratio of 2 integers(with non zero denominator).

π = 3.14159265358979323846…(irrational i.e. non-terminating non-terminating real number)