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how do you calculate the arc length of a sector. Multiply that fraction by 360. 2 A circle has an arc length of 59 and a central angle of 167 radians.
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L r th 15 p4 1178 cm. That gives you the circumference. Divide both sides by 9.
Enter the radius and central angle in DEGREES RADIANS or both as positive real numbers and press calculate.
Therefore if you divide an arcs degree measure by 360 you find the fraction of the circles circumference that the arc makes up. Double the radius then multiply by pi. So our arc length will be one fifth of the total circumference. If you understand how to calculate the circumference and area of a circle it is only a small step to calculate an arc length and area of a sector.
