3 videos in "Circles"
Pi Day
Pi Day
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The truth on what Pi Day (March 14) is really about...
- Definition of Pi - A definition of what pi is and some information about pi.
- Diameter of a circle - A description and explanation of what the diameter of a circle is and how to calculate other measurements from the diameter.
- Circumference of a circle - Definition of circumference of a circle, how to find it, and some interesting facts about circumference.
- Area of a circle - The definition of area of a circle as well as explanations of how to find the area of a circle is shown with several formulas.
- Pi Facts - A list of 50 interesting facts about pi -- quite an impressive collection.
- Pi Infographic - A banner graphic with some fun facts about pi and its history. A great resource for teachers!
- What is pi day?
- Who first studied pi?
- What is pi?
- Where does pi come from?
- How does pi relate to the circumference and diameter of circles?
- If you have a circle with a diameter of 6in., how do you find its circumference and area?
- What is the formula for circumference of a circle?
- What does C = pi*d or C = 2*pi*r mean?
- What does C = 3.14*d mean?
- What is the formula for area of a circle?
- What does A = pi*r^2 mean?
- What does A = 3.14*r^2 mean?
- How many times longer is the circumference of a circle than its diameter?
In this video, you will learn what Pi Day is all about, what pi means, and how it relates to the circumference and area of a circle. You will also learn the formulas for circumference and area of a circle as well as how many times longer a circle's circumference is than its diameter. You will also have fun watching!
