Pi

High school (ages 12+)
Mathematics & Numbers

Name:

Date:

Step 1 · Read the article

Open the article and read it at the level above. Then answer the questions below in your own words.

https://smallwhale.org/articles/pi

Write what each word means, using the article.

Do not copy the article. Write two things you learned, the way you would explain them to a friend.

Answers below are taken from the article’s stored facts, so they match what the student read.

1. What is the mathematical classification?Pi is an irrational and transcendental number
2. What is the historical approximation?Archimedes developed an algorithm to approximate Pi using polygons around 250 BC
3. What is Pi and why is it important for circles?Pi is the ratio of a circle's circumference to its diameter. It is the same for every circle and helps us calculate sizes and shapes.
4. How did people find Pi before computers?Ancient Egyptians, Babylonians, and Greeks like Archimedes used polygons inside and outside circles to estimate Pi. Later mathematicians used infinite series to get more digits.

Irrational Number: A real number that cannot be expressed as a simple fraction, with an infinite, non-repeating decimal expansion.
Transcendental Number: A number that is not algebraic, meaning it cannot be a root of a non-zero polynomial equation with integer coefficients.
Algorithm: A step-by-step procedure or set of rules for solving a problem or performing a computation.