Since pi is transcendental, pi2 is also transcendental. So pi is the square root of the transcendental number pi2.

Hermite proved that "e" is transcendental, but it was Ferdinand Lindemann who proved that "pi" is transcendental.

An algebraic number is one which is a root of a non-constant polynomial equation with rational coefficients. A transcendental number is not an algebraic number. Although a transcendental number may be complex, Pi is not.

An irrational number is a number that cannot be represented as a fraction involving two integers.

A transcendental number is a number that cannot be repesented as a polynomial with rational coefficients. Two notable transcendental numbers are pi and e.