document.write( "Question 184146: find the surface area of the rectangular prism 9in.x 9in.x 12in \n" ); document.write( "
Algebra.Com's Answer #138175 by Alan3354(69443)![]() ![]() You can put this solution on YOUR website! find the surface area of the rectangular prism 9in.x 9in.x 12in \n" ); document.write( "---------------- \n" ); document.write( "rectangular prisms have 6 sides. The sides are pairs, 2 of each area. \n" ); document.write( "For a prism with sides a, b and c, the area is \n" ); document.write( "2ab + 2ac + 2bc \n" ); document.write( "------------- \n" ); document.write( "For this one: \n" ); document.write( "A = 2*9*9 + 2*9*12 + 2*9*12 \n" ); document.write( "A = 162 + 216 + 216 \n" ); document.write( "A = 594 sq inches \n" ); document.write( " \n" ); document.write( " |