In mathematical language, what does the symbol 'π' represent?

Steps to Solve

1. Identify the symbol 'π' The symbol 'π' is a well-known mathematical constant that represents the ratio of a circle's circumference to its diameter.

2. Understand its value The value of 'π' is approximately 3.1416. It is an irrational number, meaning it has an infinite number of decimal places and does not repeat.

3. Analyze the options

   • a. An integral: This is incorrect; 'π' itself is not an integral.
   • b. The square root of 2: This is also incorrect; 'π' is not equal to the square root of 2.
   • c. The constant approximately equal to 3.1416: This is correct, as it describes π accurately.
   • d. The imaginary unit equal to the square root of -1: This is incorrect; the imaginary unit is represented by 'i', not π.

4. Select the correct answer The correct option is c, as it accurately defines the value of π.