hey guji! U reminded me of my childhood... I used to play making different geometrical figures. Actually if u keep doing that for several times .. u will have a wonderful flower drawn. But as per ur question, if u do it once.. u get an ellipse... Ellipse with ( 4- 0.5-0.5) = 3 cm longer side and ( 4- 1.5-1.5) = 1 shorter side.. and so the area of ellipse is pi*longer *shorter/4 = 2.356 sq cm :) Cheers!