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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.

  • math -

    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
    =-------------
    360°

  • math -

    okay thanks!

  • math :) -

    You're welcome!

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