What is the exact circumference of the circle? A. 48 inches B. 32 inches C. 16 inches D. 8 inches https://static.k12.com/calms_media/media/1419000_1419500/1419356/1/9ee5463168e0f0fa802a7e4be7f67e9f074d19ee/MS_PA_130922_171128.jpg
@rebeccaxhawaii
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Diameter = 2r Circumference = 2πr Circumference = 2r * π Circumference = Diameter * π
you are given diameter and radius is half that - so divide your diameter by 2 to get your radius then plug it in to the formula
Or you can just multiply the diameter with π
What is the diameter...
16?
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Ok Thanks
50.2654824574 is the answer
Actually, no. "Exact circumference" would require that you not round off the valule of pi. Instead, write 16pi.
Too bad that none of the answer choices match that. 48 inches is not the "exact" circumference, altho 48 inches is closest to the exact circumference.
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