The length of room is y metres. Write the breadth of the room which is 20 metres less than twice the length. Write an expression for the perimeter of the room. Share with your friends Share 2 Priyanka Kedia answered this Given, length of room=y metersAccording to question,Breadth of room=2y-20Now,Perimeter of room=2Length+Breadth=2y+2y-20=23y-20=6y-40⇒Perimeter of room=6y-40 6 View Full Answer Dipti Milind Patil answered this PERIMETER OF RECTANGLE = 2( LENGTH+ BREADTH )HENCE, PERIMETER OF RECTANGULAR ROOM= 2[ Y + (2Y - 20 ) ]HOPE THE ANSWER HELPS YOU!! 1 Anushka Mandal answered this Let length be y metres & breadth be 2y - 20.Therefore,Perimeter of the room ={ 2 [ y + ( 2y - 20 ) ] } 0