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valentinak56 [21]
3 years ago
5

a circle with circumference 20 has an arc with a 72 degrees central angle. what's the length of the arc

Mathematics
1 answer:
Ugo [173]3 years ago
6 0

Answer:

4 units.

Step-by-step explanation:

Let's use a ratio

72 : 360

8  :  40

1   :   5

The arc is \frac{1}{5} of the total circumference.

\frac{1}{5} *20=4

The arc length is 4

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