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Formulas (degrees and radians); 5 Solved Problems. On this page we provide the formula for calculating the length of an arc of a circle as a function

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The simplest way to find the radius is to divide the diameter in half.

Note how we solve a few problems where there is a missing arc measure.

The formulas for an arc of circumference are: If the angle is alpha, the area is A = pi * r^2 * (alpha/360Β°) and the arc length is b = 2 * pi * r * (alpha/360).

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15.137 Calculate the length of the arc of a circle corresponding to an angle of 50ΒΊ being 4 cm, the radius of the circle. Answer: 3.49 cm.

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Calculate the measure of the length of the circumference and the area of a circle. A circular sector is bounded by an arc length of 5 Ο cm and

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