Concept:π is an irrational number because its decimal expansion is non-terminating and non-repeating, and it cannot be written as a fraction with integers.
Explanation:A rational number can be expressed as
p/q where
p and
q are integers and
q=0.
An irrational number cannot be expressed in that form.
π = 3.14159265359… has an infinite non‑repeating decimal pattern.
Thus, π does not fit the definition of a rational number.
It is not an integer (no fractional part) and not a prime number (primes are integers >1 with exactly two divisors).
Hence, π is an irrational number.
Answer:B. irrational number