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

User Leandro Parice
by
8.1k points

1 Answer

7 votes

Answer:

4π cm = 12.57 cm

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

User Jonathan Charlton
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8.1k points
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