The symbol for pi squared is π².
Pi (π) represents the ratio of a circle's circumference to its diameter and is approximately equal to 3.14159. Squaring pi means multiplying pi by itself (π * π). The symbol π² represents this mathematical operation.
π² is often encountered in various mathematical and scientific contexts, particularly when dealing with areas of circles and in some statistical formulas. For example, it appears in the formula for the variance of a standard normal distribution. While "𝝅r²" (pi r squared) represents the area of a circle, the question specifically asks for the symbol representing pi squared itself.
