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3 votes
Find the diameter and circumference of a circle with the radius of 13.1 km.

1 Answer

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R = 13.1
so
diameter = 13.1 x 2 = 26.2 km
circumference = 2 pi r = 26.2 pi km
or
circumference = 26.2 x 3.14 = 82.27 km
answered
User Boba
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