document.write( "Question 776778: Dear Math Tutor,\r
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document.write( "Two cubes are places next to each other. the length of each of the edges of the larger cube is 4cm. if the ratio of their surface areas is 1:4 calculate: a)the surface area of the small cube. b) the length of the an edge of the small cube\r
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document.write( "the ratio part is confusing me. how do i use the ratio to find a)?
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document.write( "thank you.
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document.write( "Best wishes,
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document.write( "Nats\r
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Algebra.Com's Answer #473722 by Cromlix(4381)![]() ![]() You can put this solution on YOUR website! Surface Area of large cube: \n" ); document.write( "Six times (number of faces) \n" ); document.write( "times area of 1 face. \n" ); document.write( "6 * 4 * 4 = 96 cm^2 \n" ); document.write( "If the ratio of small to large is 1:4 \n" ); document.write( "96/4 = 24 cm^2 \n" ); document.write( "6 sides of small cube = 24 cm^2 \n" ); document.write( "1 side of small cube = 4 cm^2 \n" ); document.write( "Square root of 4 = 2cm \n" ); document.write( "The size of a side of the small \n" ); document.write( "cube = 2cm. \n" ); document.write( "Hope this helps. \n" ); document.write( ":-) \n" ); document.write( " |