Calculate 58953

Calculate the area of a circular line if the radius r = 80 cm and the central angle is α = 110 °.

Correct answer:

S =  3136.5426 cm2

Step-by-step explanation:

r=80 cm α=110° rad=110° 180π =110° 1803.1415926 =1.91986=11π/18  S=2r2 (αsinα)=2802 (1.9199sin1.9199)=3136.5426 cm2

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