Q:

# How is pi used in everyday life?

A:

The number pi, represented by the symbol π, is used in everyday life to calculate the radius or circumference of circles and in design and construction. Pi is an irrational number, often approximated to 3.14, that was discovered by Greek mathematicians as a ratio to relate the diameter of a circle to the circumference.

## Keep Learning

Pi is used for many different tasks in different professions and assists in different aspects of design work, particularly for round objects. Engineers who design things like tires, piping and tubing, round gaskets and balls use pi every day at work. For example, to determine the amount of material needed to make a basketball, designers used pi to figure out the surface area of a sphere of the appropriate size. Anytime a cylinder is made pi is used to determine the length required to wrap material all the way around it. Calculating the volume of a cylinder, cone or sphere also requires an operation of pi.

Many math-intensive professions regularly utilize pi, but it can also be used in daily non-professional life. When pi is used for in-home projects, often it is approximated at 3, whether calculated or simply visually estimated. If someone needs to coat a circular or cylindrical object, such as in painting a room or frosting a cake, they could use a rounded version of pi to determine about how much material is needed to completely coat the surface.

Sources:

## Related Questions

• A: Some examples of uses of negative numbers in everyday life are calculating the price paid for a service or determining the amount of weight lost. Negative ... Full Answer >
Filed Under:
• A: A mathematics teacher named William Jones is credited with first using the symbol π in 1706 to represent the concept of the ratio between a circle's circum... Full Answer >
Filed Under:
• A: Math is important in everyday life for several reasons, which include preparation for a career, developing problem-solving skills, improving analytical ski... Full Answer >
Filed Under:
• A: Math is used in everyday life for scheduling, travel, cooking, shopping, medicine, construction and various other applications. It is also required for com... Full Answer >
Filed Under:
PEOPLE SEARCH FOR