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how to find the length of an arc in a circle. Then multiply that number by the radius of the circle. Now here the radius is given as 21 cm and the angle of the sector is 150.
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An arc is a segment of a circle around the circumference. The arcs length is computed in distance units such as centimetres. Then multiply that number by the radius of the circle.
Cm using the arc length formula.
Arc Length r m where r is the radius of the circle and m is the measure of the arc or central angle in radians. Relate the length of an arc to the circumference of a whole circle and the central angle subtended by the arc. Watch this video to know more about Perimeter Area and VolumeTo learn more about circles enrol in our full course now. If a sector is cut from a circle of radius 21 cm and the angle of the sector is 150.
