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25-07-2020
Mathematics

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A circle has a radius of 10. An arc in this circle has a central angle of 72 degrees. What is the length of the arc? btw, the arc is aligned with the radius

Respuesta :

25-07-2020

Answer:

4 Pi

Explanation:

72/360 = 1/5 so the length of the arc is (1/5) the circumference or

(1/5) ( 2 Pi * 10) => C = 2 Pi r

(20/5) Pi =

4 Pi

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