document.write( "Question 1172768: A tiny rectangular prism with sides of 21 mm by 24 mm by 36 mm is covered with enamel and then cut into small cubes with sides of 3 mm. How many of the cubes have enamel on just one side? \n" ); document.write( "
Algebra.Com's Answer #797883 by ikleyn(52781)![]() ![]() You can put this solution on YOUR website! .\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "It is well known entertainment problem, so I will give you only HINT to solve it.\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " HINT : They are the cubes at the surface that are 3 mm or more apart from each edge.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " So, consider a square grid at each face and calculate the number of appropriate square cells at each face.\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |