Respuesta :

recall that a circle has a total of 2π radians, so 2/3 of the circumference taken up by the arc, will yield an angle 2/3 of those 2π, what's 2/3 of 2π?

[tex]\bf \cfrac{2}{3}\cdot 2\pi \implies \cfrac{4\pi }{3}[/tex]

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