why is PI considered irrational if it can be expressed as ratio of circumference to diameter?
37642
Why is $\pi$ irrational if it is represented as $C/D$?
153831
Approximating $\pi$ with least digits
109175
Why is it hard to prove whether $\pi+e$ is an irrational number?
13592
How can $\pi$ be irrational if it can be calculated using an infinite series of rational numbers?
75204
Irrationality $\sqrt{2}$ with ideal
141424
$\log_7 n$ is either an integer or an irrational number
155241
How do we know the ratio between circumference and diameter is the same for all circles?
7134
Confusion related to calculation of pi
67605
Different proof that $\sqrt{2}$ is irrational
7801
Can you raise a number to an irrational exponent?
128098
Decimal Expansion of Pi
26154
Motivation for Ramanujan's mysterious $\pi$ formula
104548
Geometric proof for irrationality of $\pi$
102729
Is there an equidissection of a unit square involving irrational coordinates?
15110
About irrational logarithms
158730
Is $\ln(\ln(n))$ irrational for any integer $n>1$?
19676
Is it known whether ${\sqrt{2}}^{\sqrt{2}}$ is irrational?