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Area Of A Circle Sara&Lisa

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Area Of A Circle Sara&Lisa

1. 1. Why Does Circle Area Formula Work? By Lisa, Sara 6 th March, 2009
2. 2. Problem <ul><li>The problem is, why does circle area formula work? </li></ul><ul><li>Area = πr 2 ? </li></ul>
3. 3. Process <ul><li>The process for figuring out if the circle area formula works, started all by cutting out mini pizza pieces of a circle and then arranging and gluing them in a sort of rectangle. </li></ul><ul><li>Then the circle area formula was tested if it worked. </li></ul>
4. 4. Challenges <ul><li>The challenges were, making a perfect rectangle, cutting out perfect mini pizza pieces, understanding the questions and directions and understanding the formulas for area of a circle. </li></ul>
5. 5. Solution <ul><li>The solution was: </li></ul>