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Posted by on Sunday, September 1, 2013 at 2:46am.

Calculate the arc length that subtends an angle of 55 degree at the centre of a circle with radius r = 5cm.

  • maths - , Sunday, September 1, 2013 at 3:05am

    An arc length l of radius r and angle θ (in radian measure) is:
    l = rθ

    Convert the angle from degrees to radians. Multiply the radius by that measure.

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