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20120111 Ch 11.5.notebook
1
January 11, 2012
By the end of this lesson, you should be able to:
• use the area and area of a sector formulas to find missing measurements in a circle
Warm up: 1/11A. I want to put a ring of sprinkles around the outside of each cupcake. The diameter of one cupcake is 3 inches. How long would each ring of sprinkles be?
B. You want to find the arc length of this red portion of the board. What information do you need to calculate the length? (string is not available)
20120111 Ch 11.5.notebook
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January 11, 2012
20120111 Ch 11.5.notebook
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January 11, 2012
20120111 Ch 11.5.notebook
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January 11, 2012
20120111 Ch 11.5.notebook
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January 11, 2012
Sector of a circle
part whole
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January 11, 2012
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January 11, 2012