Pi Sean 7 Axel
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Pi is a never-ending number that represents the ratio of a circle's circumference to its diameter. The document describes an experiment where a circle's circumference of 73.9 and diameter of 23.6 were measured, and dividing the circumference by the diameter resulted in 3.14, approximating the value of pi. Pi is commonly used in geometry and calculations involving circles.
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The students had to determine if the area of a circle using πr^2 is equivalent to the area of a rectangle with the same circumference. They cut a circle into pieces that were glued back together into a rectangle. This showed the two areas were the same, confirming L x W = πR^2. The challenges were accurately cutting the circular pieces and carefully gluing them together.
Julia And Melissa Circle Reflection
The document explains why the formula for the area of a circle works. It describes an experiment where a circle was cut out and placed in a rectangle, allowing measurements to show that the radius of the circle is equal to the width of the rectangle and the length is half the circumference of the circle. This revealed that the area of the circle is equal to π times the radius squared, since the area of the rectangle is length times width.
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- 1. Discovering Pi By: Sean And Axel With the Assistance of Mr. Dalesio
- 3. One of the objects we measured Circumference=73.9 Diameter= 23.6 So if the circumference is 73.9 and the diameter is 23.6 then is you divide 73.9 by 23.6 than you will get 3.14 which is pi.