SOLUTION: a metal cube of side 4 cm is melted and recast into a rectangular block of dimensions 8 cm x 4 cm x 2 cm. find the percentage increase in the total surface area
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Question 1085830: a metal cube of side 4 cm is melted and recast into a rectangular block of dimensions 8 cm x 4 cm x 2 cm. find the percentage increase in the total surface area Answer by josmiceli(19441) (Show Source):
You can put this solution on YOUR website! The surface area of the cube is: cm2
( 6 4x4 faces )
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The surface area of the rectangular block is:
( 2 8x4 faces, 2 2x4 faces, 2 8x2 faces ) cm2 increase in surface area
16.67% increase
