circle has a radius of3 . An arc in this circle has a central angle of 20degree
What is the length of the arc?
Either enter an exact answer in terms of \piπpi or use 3.143.143, point, 14 for \piπpi and enter your answer as a decimal.
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Answer:
arc length = radius × ( central angle in radian )
to convert degree to radian ===> multiply with π/180
20° ===> 20×π/180 ===> π/9 rad
====> arc length ===> 3 × π/9 ===> π/3 ===> 3.14/3 ===> 1.046 units
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