document.write( "Question 312374: a rectangle is twice as long as it is wide. what are its dimentions if it's perimeter is 186cm? \n" ); document.write( "

Algebra.Com's Answer #223376 by Fombitz(32388) $\"\"$ $\"About$

You can put this solution on YOUR website!
The perimeter of a rectangle is,
\n" ); document.write( " $\"P=2%2A%28L%2BW%29=168\"$
\n" ); document.write( " $\"L%2BW=84\"$
\n" ); document.write( "You also know,
\n" ); document.write( " $\"L=2W\"$
\n" ); document.write( "Substiute,
\n" ); document.write( " $\"2W%2BW=84\"$
\n" ); document.write( " $\"3W=84\"$
\n" ); document.write( " $\"highlight%28W=28%29\"$
\n" ); document.write( "Then
\n" ); document.write( " $\"L=2W\"$
\n" ); document.write( " $\"highlight%28L=56%29\"$
\n" ); document.write( " \n" ); document.write( "

\n" );