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March 30, 2017

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Suppose a slice of a 10-inch pizza has an area of 15 square inches.What is the angle of this slice?
Make a sketch to illustrate your answer.

  • geometry - ,

    Area of whole pizza = 100π , if by 10-inch pizza you mean a radius of 10
    number of slices = 100π/15= 20.9 or 21 slices ?????
    so the central angle of each slice = 360/21 = 17.1°

    If the radius is 5 inches,
    area = 25π
    number of slices = 25π/15 = 5.2 ????
    round off to 5 slices
    angle at centre for each slice = 360/5.2 = 69
    23°

    Something tells me there is something wrong here.
    Who cuts a pizza into 21 slices or 5 slices?

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