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A brown paper bag contains shapes - 3 circles one each with radii 3,4,5, 3 squares with side 4,5,6, 3 equilateral triangles with side 6,7,8. average perimeter of these 9 shapes is?
${(24π+123)}/9$ ${(24π+140)}/9$ ${(24π+64)}/9$ none of the above
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