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liberstina [14]
3 years ago
13

Answer asap pls sdkfjlcsjldkjnclfakwjflkajlcsfs

Mathematics
1 answer:
Masja [62]3 years ago
7 0

Given:

The circumference of a circle is 18.

Central angle of an arc is 120 degrees.

To find:

The measure of arc length.

Solution:

The arc length of a circle is:

s=2\pi r\times \dfrac{\theta }{360^\circ}

Where, r is the radius of the circle, \theta is the central angle in degrees.

We know that, 2\pi r is the circumference of the circle. So, substitute 2\pi r=18,\theta=120^\circ in the above formula.

s=18\times \dfrac{120^\circ}{360^\circ}

s=18\times \dfrac{1}{3}

s=6

Therefore, the length of the arc is 6 units.

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