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29 April, 11:31

In a circle, a 270 sector has area 675pie in^2. What is the radius of the circle?

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Answers (2)
  1. 29 April, 12:01
    0
    First, it is pi instead of pie.

    Let r inch be the radius.

    (270/360) (pi*r^2) = 675 pi

    r=30

    Hence, the radius is 30 inch
  2. 29 April, 12:15
    0
    Area of sector = pi r^2 • angle/360

    Pi r^2• 270/360 = 675pi (cancel pi on both sides)

    R^2 •3/4 = 675

    R^2 = 675 • 4/3

    R^2 = 900

    R = square root of 900

    R = 30

    The radius is 30
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