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sector and diameter

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Find the area of a sectorwith a central angle 0f 190degree and a diameter of 5.1cm.

Can someone please help?

  • sector and diameter -

    Ac = pi*r^2 = 3.14*(5.1/2)^2 20.42 cm^2
    = Area of circle.

    As = (190/360)*20.42 = 10.78 cm^2. = Area of sector.

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