document.write( "Question 852153: I need to find the surface area for a prism. The height is 18.5, the width is 12 and the length is 6 \n" ); document.write( "
Algebra.Com's Answer #513205 by josh_jordan(263)![]() ![]() You can put this solution on YOUR website! The formula for the surface area of a rectangular prism is 2ab + 2bc + 2ac = Surface Area.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "We have 3 values: 18.5, 12, and 6. We can assign each of these values a letter. So, lets use a=6, b=18.5, and c=12. Now, all we need to do is plug the values for each letter into our equation:\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "2(6)(18.5) + 2(18.5)(12) + 2(6)(12) = Surface Area. ----->\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "222 + 444 + 144 = Surface Area ----->\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "810 = Surface Area\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "So, the surface area of your prism is 810. \n" ); document.write( " |