The diameter of a circle is 10 cm, then find the length of the arc, when the corresponding central angle is 144∘.(π=3.14)
A
44 cm
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B
12.56 cm
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C
12 cm
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D
88 cm
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Solution
The correct option is B12.56 cm Radius of the circle =Diameter2=5cm Length of an arc subtending an angle θ=θ360×2πR where R is the radius of the circle.