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2 January, 14:32

If the radius of a circle is 3 meters, how long is the arc subtended by an angle measuring 30°?

A) 2π meters

B) 4π meters

C) 1/4π meters

D) 1/2π meters

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Answers (1)
  1. 2 January, 14:53
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    Circumference (entire circle) = 2 * PI * radius

    circumference (entire circle) = 6 * PI

    30 degree arc length = (30 / 360) * 6 * PI

    30 degree arc length = (1/2) PI meters

    answer is D
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