Understanding Pi Worksheet
Explore the concept of Pi, its definition, and how to calculate circumference and area of circles.
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Understanding Pi
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Read each question carefully and answer to the best of your ability. Show all your work for calculations.
1. Pi is represented by the Greek letter .
2. Pi is the ratio of a circle's circumference to its .
3. The approximate value of Pi is .
1. Which of the following best describes the relationship between a circle's circumference and its diameter?
Circumference = Diameter + Pi
Circumference = Diameter / Pi
Circumference = Pi × Diameter
Circumference = Pi + Diameter
2. If the radius of a circle is 5 cm, what is its diameter?
2.5 cm
5 cm
10 cm
15 cm
1. A circular swimming pool has a diameter of 10 meters. Calculate its circumference. Use π ≈ 3.14.
2. Explain in your own words what Pi represents.
Use the circle below to answer the following question.
1. What is the approximate circumference of the circle shown above? Use π ≈ 3.14.