Pi
โญ MasteredPi is the number you get when you divide the circumference of any circle by its diameter. It is about 3.14, and it never ends or repeats.
People have used pi for thousands of years, and computers have calculated trillions of its digits.
All about Pi
Pi is the number you get when you divide the circumference of any circle by its diameter. It is about 3. 14 and never ends or repeats.
Pi is used to calculate the circumference and area of circles.
Whatever the size of the circle, the answer is always the same. Pi is approximately 3. 14, and it is written with the Greek letter ฯ.
Pi is an irrational number, which means its decimal digits never end and never repeat. Mathematicians have calculated trillions of its digits.
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Real-life uses of Pi
- Calculating the distance around a wheel
- Working out the area of a circular pond
- Designing round objects
Frequently asked questions about Pi
What is pi?
Pi is the ratio of a circleโs circumference to its diameter, about 3.14.
Does pi end?
No. It is an irrational number with endless digits.