document.write( "Question 120556: The length of a rectangle is 20cm greater than its width. The perimeter is 360cm. What is the area?\r
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document.write( "I really don't understand this, could someone please help? \n" );
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Algebra.Com's Answer #88383 by tutor_paul(519)![]() ![]() You can put this solution on YOUR website! The perimeter (P) of a rectangle is: \n" ); document.write( " \n" ); document.write( "Based on the information given, we can use this equation to determine the sides of the rectangle, and from that, we can get the area. \n" ); document.write( "Re-write the Perimeter equation based on the information given: \n" ); document.write( " \n" ); document.write( "Solve for w: \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "Now that you have w, you can easily find l: \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "------------------- \n" ); document.write( "So now you have the length and the width - this is what you need to find the area, since the equation for the area of a rectangle is: \n" ); document.write( " \n" ); document.write( "Substituting in: \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "==================== \n" ); document.write( "Good Luck, \n" ); document.write( "tutor_paul@yahoo.com \n" ); document.write( " |