marian883 marian883
  • 01-12-2017
  • Mathematics
contestada

A circle has a radius of 12ft . find the length s of the arc intercepted by a central angle of 9° .

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kritter1
kritter1 kritter1
  • 01-12-2017
Plug in the values into the base equation; 

[tex]l=2 \pi r( \frac{ \alpha }{360} )[/tex] <-- alpha is the degree 

l=2 \pi (12)(9/360) 
l=1.88495 ft ≈ 1.90 ft 

Hope I helped :) 
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