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5 January, 17:36

Find the area of a sector with a central angle of 32° and a radius of 8.5 millimeters. Round to the nearest tenth.

A. 40.4 mm²

B. 2.4 mm²

C. 20.2 mm²

D. 9.5 mm²

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Answers (1)
  1. 5 January, 17:48
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    360 degrees in a circle

    32/360 of total area is sector area

    area=pir^2

    r=8.5

    area=pi8.5^2

    area=226.980022 mm^2

    multiply it by 32/360

    sector=20.17600195555556

    round

    sector=20.2

    C is answer
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