document.write( "Question 261901: The perimeter of a rectangle is 72 centimeters. The base is 3 times the height. What are the dimensions of the rectangle? What is the area? \n" ); document.write( "
Algebra.Com's Answer #192998 by checkley77(12844) ![]() You can put this solution on YOUR website! 2B+2H=PERIMETER. \n" ); document.write( "2B+2H=72 \n" ); document.write( "B=2H \n" ); document.write( "2(2H)+2H=72 \n" ); document.write( "4H+2H=72 \n" ); document.write( "6H=72 \n" ); document.write( "H=726 \n" ); document.write( "H=12 CM. FOR THE HEIGHT. \n" ); document.write( "B=2*12=24 CM. FOR THE BASE. \n" ); document.write( "PROOF: \n" ); document.write( "2*12+2*24=72 \n" ); document.write( "24+48=72 \n" ); document.write( "72=72 \n" ); document.write( "BH=AREA \n" ); document.write( "12*24=288 CM^2 IS THE AREA. \n" ); document.write( " |