document.write( "Question 1037077: Calculate the surface area of a triangular prism. The base is 19cm, the length is 22cm and the height is 14cm. \n" ); document.write( "
Algebra.Com's Answer #651775 by Cromlix(4381)![]() ![]() You can put this solution on YOUR website! Hi there, \n" ); document.write( "With regard to the two triangular faces \n" ); document.write( "either end of the prism. The hypotenuse \n" ); document.write( "= √ 14^2 + 19^2 \n" ); document.write( "= 23.6cm. \n" ); document.write( "Now you have 5 faces:- \n" ); document.write( "1) Base = 19 x 22 = 418 cm^2 \n" ); document.write( "2) Upright back = 14 x 22 = 308 cm^2 \n" ); document.write( "3) Slanted face = 23.6 x 22 = 519.2 cm^2 \n" ); document.write( "4) 2 triangular ends \n" ); document.write( "= 1/2(19 x 14) x 2 \n" ); document.write( "= 266 cm^2 \n" ); document.write( "Added together: \n" ); document.write( "418 + 308 + 519.2 + 266 \n" ); document.write( "= 1511.2 cm^2 \n" ); document.write( "Hope this helps :-) \n" ); document.write( " |