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A stone sundial has a diameter of 30 inches. What is the approximate circumference of the sundial
[From: ][author: ][Date: 13-08-18][Hit: ]
C = 2 (3.C = 188.......
(Use C = 2 pi r and pi = 3.14)
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Radius = 15 inches
C= 2(3.14)15= 94.2 inches
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2 x 3.14 x 15 = 94.2 inches
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C = 2 pi r
C = 2 (3.14) (30)
C = 188.4 inches
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