A sector in a circle of radius 8.1 m has an area of 53.5 m^2. The central angle in a sector must be _____o. Round to one decimal place.

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asked by Emma
  1. Hint:
    a sector is a pie-piece, similar to a slice of pizza.

    The area of a sector of a given radius is proportional to the central angle.

    Area of Sector
    Area of circle

    central angle

    posted by MathMate
  2. okay thanks!

    posted by Emma
  3. You're welcome!

    posted by MathMate

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