Centimeters 83442

Calculate the length of the arc of a circle and the volume of a circular section if the circle's radius is 8.3 centimeters and the central angle alpha=104 degrees.

Correct answer:

l =  15.0657 cm
S2 =  62.5226 cm2

Step-by-step explanation:

r=8.3 cm α=104   o=2π r=2 3.1416 8.352.1504 cm S=π r2=3.1416 8.32216.4243 cm2  k=360α=360104=45130.2889  l=k o=0.2889 52.1504=15.0657 cm
S2=k S=0.2889 216.4243=62.5226 cm2

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