For rectangle l=3.07m b=2.24m so longest side that can be drawn is diagonal of rectangular board =squareroot l^2+b^2 =squareroot3.07^2+2.24^2 =squareroot9.4249+5.0176 =squareroot14.4425 =3.80 So longest line that can be drawn in rectangular board is 3.80m
