Question

Find the arc length of the semicircle.

Either enter an exact answer in terms of n pi or use 3.14 for n pi and enter your answer as a decimal.
units.
* this is from Khan academy and the lesson is about ( circumstance of part of circles) PLEASE HURRY AND HELP ME!!!!!
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Answer 1

12.56

Explanation:

Radius = 8/2 = 4

Arc length = pi × r

= 3.14 × 4

= 12.56