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posted by Anonymous Saturday, May 14, 2011 at 8:25am.
an iron bar measures 11 cm x 7 cm x 5 cm it is melted down to make a cylinder height of 9 cm what is its radius
11 x 7 x 5 cm^3 = pi*R^2*9 Solve for R R = sqrt[385/(9*pi)] cm You do the numbers
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