Algebra-1

The answer is A. Irrational number

Pi (π) is an example of an irrational number.

The key properties that classify pi as irrational are:

Pi cannot be represented as a quotient of two integers (such as 22/7). Its decimal representation does not terminate or repeat.

By definition, irrational numbers cannot be expressed as an exact fraction or ratio of integers.

Pi satisfies the definition of an i...