document.write( "Question 290732: The total surface area of a cube is 10,648 centimeters squared. What is the length of a diagonal that is not a diagonal of a face?\r
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document.write( "Note: The surface area of a cube is 6e squared, where e is the edges of the cube.\r
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document.write( "Please help, thank you! \n" );
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Algebra.Com's Answer #210406 by ankor@dixie-net.com(22740)![]() ![]() You can put this solution on YOUR website! The total surface area of a cube is 10,648 centimeters squared. What is the length of a diagonal that is not a diagonal of a face? \n" ); document.write( "Note: The surface area of a cube is 6e squared, where e is the edges of the cube. \n" ); document.write( ": \n" ); document.write( "Find the diagonal of the face (c) \n" ); document.write( "c^2 = 2e^2 \n" ); document.write( "; \n" ); document.write( "Diagonal (d) of opposite corners (not a diagonal of a face) \n" ); document.write( "Using the diagonal of the face and one edge \n" ); document.write( "d^2 = 2e^2 + e^2 \n" ); document.write( "d^2 = 3e^2 \n" ); document.write( "d = \n" ); document.write( "Find e^2 \n" ); document.write( "e^2 = \n" ); document.write( "e^2 = 1774.67 \n" ); document.write( "then \n" ); document.write( "d = \n" ); document.write( "d = 72.9658 \n" ); document.write( " |