document.write( "Question 701426: what is the area of an equilateral triangle if each side measures 18 dm long? \n" ); document.write( "
Algebra.Com's Answer #432416 by shanehhhh47(5)![]() ![]() You can put this solution on YOUR website! There are many methods in solving this, but I recommend this formula: \n" ); document.write( "A=s^2((sqrt of 3)/4) \n" ); document.write( "Substitute: \n" ); document.write( "A=(18)^2 ((sqrt of 3)/4) \n" ); document.write( "A=324(sqrt of 3)/4 \n" ); document.write( "simplify: 324/4 \n" ); document.write( "81 sqrt of 3 dm^2 is the answer or if you want a more precise answer: \n" ); document.write( "140.296115413dm^2\r \n" ); document.write( "\n" ); document.write( ":) \n" ); document.write( " \n" ); document.write( " |