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8090 [49]
2 years ago
15

The radius of a circle is 4 centimeters. what is the length of a 180 degrees arc?

Mathematics
1 answer:
Vadim26 [7]2 years ago
6 0

Answer:

4π cm = 12.57 cm

Step-by-step explanation:

180 degrees is half of a circle, so the length of the arc is half of the circumference.

length = (2πr)/2 = πr = 4π cm = 12.57 cm

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