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A circle with circumference, 20 has an arc with a 72∘ central angle. What is the length of the arc?

Respuesta :

altavistard

Answer:

1.27

Step-by-step explanation:

The arc length formula is s = rФ, where Ф is the central angle in radians.  

Here, r = C / (2π), or  r  =20 / (6.28).

Then the arc length is s = rФ = (20/6.28)(72π/180) = 1.27

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