document.write( "Question 148971: A sailboat sail in the shape of an isosceles triangle has a base that is 9 feet longer that either of the equal sides. If the perimeter of the sail is 21 feet, then what is the length of the base of the sail? \n" ); document.write( "
Algebra.Com's Answer #109303 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! A sailboat sail in the shape of an isosceles triangle has a base that is 9 feet longer that either of the equal sides. If the perimeter of the sail is 21 feet, then what is the length of the base of the sail? \n" ); document.write( "------------------ \n" ); document.write( "Let the equal side length be \"x\" ft. \n" ); document.write( "------------ \n" ); document.write( "EQUATIO: \n" ); document.write( "x +x + x + 9 = 21 \n" ); document.write( "3x = 12 \n" ); document.write( "x = 4 ft (length of one of the equal sides) \n" ); document.write( "x+9 = 13 (length of the base) \n" ); document.write( "=============== \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( " \n" ); document.write( " |