KB & AH Circle Reflection
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KB & AH Circle Reflection

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    KB & AH Circle Reflection KB & AH Circle Reflection Presentation Transcript

    • BY ALEXIS AND KATHERINE 7W The Area of a Circle
    • Problem
      • We knew that the area of a rectangle was l×w, but did you know you can find the area of a circle using a similar formula?
      • The area of a circle is πr 2 .
       Width Length 
    • Process
      • We cut 24 triangles out of a circle. We lined them up, trying to make a rectangle-like shape.
      • We reflected on the process by answering questions and figuring out how rectangles and circles are alike.
    • Challenges
      • Cutting out the pieces was a bit difficult because they had to be exact.
      • Some of the questions were hard to answer about the process.
      • It was challenging to find a link between the area of a rectangle, and the area of a circle.
    • Solution
      • A = l×w
      • A = c ⁄ 2 × r
      • A = πd / 2 × r
      • A = π2r / 2 × r
      • A = πr × r
      • A = πr 2
      These are the steps that must be taken to see the connection between the area of a rectangle (l×w) and the area of a circle (πr 2 ).s