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jabez177 (jabez177):
What is the approximate perimeter of a semicircle with a radius of 9 mm? Use π = 3.14. Express your final answer to the nearest hundredth. ______ mm
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jabez177 (jabez177):
14.13?
OpenStudy (ali0094):
(2 r Pi)/2 r=9 (2(9)(3.14))/2=28.26
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