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A circular shape has a circumference of 47.1 cm. Using π = 3.14, find the radius and diameter of the shape.
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Radius = 3.75 cm; diameter = 7.5 cm
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Radius = 7.5 cm; diameter = 14 cm
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Radius = 7.5 cm; diameter = 15 cm
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Radius = 15 cm; diameter = 30 cm