Respuesta :

2pi radians in a circle

1 circle=360
therefor
ratio and proporiton
parts/whole=130/360=xradians/2pi

130/360=xradians/2pi
13/36=xradians/2pi
times 72pi both sides
26pi=36xradians
divide both sides by 36
(13pi)/18=xradians

(13pi)/18 radians
aprox 2.2689280275927 radians

Answer:

2pi

Step-by-step explanation:

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