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Serggg [28]
3 years ago
6

A circle with a circumference 120, degrees central angle.What is the length of the arc?

Mathematics
1 answer:
Mrrafil [7]3 years ago
8 0

Answer:  arc\ length=6

Step-by-step explanation:

The complete exercise is: "A circle with circumference 18 has an arc with a 120° central angle. What is the length of the arc?"

For this exercise you need to remember the folloowing:

1. The circumference of a circle can be found with this forrmula:

C=2\pi r

Where "r" is the radius of the circle

2. The Arc length can be calculated with the following formula:

arc\ length=2\pi r(\frac{C}{360})

 Where "r" is the radius.

In this case, you know that the circumference of this circle is 18. Then, yoy can identify that:

2\pi r=18

So, knowing that the central angle measures 120 degrees, you can substitute values into the formula for calculate the arc length and then you must evaluate.

Therefore, applying this procedure, you get the following result:

arc\ length=18(\frac{120}{360})\\\\arc\ length=6

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