Mom is going to buy a square tablecloth for a round dining table. The diameter of the round tabletop is 1.6 meters, and the height of the dining table is 0.8 meters. If the four corners of the square tablecloth are 0.1 meters away from the ground, what is the area of the square tablecloth?
妈妈准备给圆形餐桌买一块正方形桌布，量得圆形桌面的直径是1.6米，餐桌的高是0.8米，若使这块正方形桌布的四角距离地面0.1米，正方形桌布的面积为多少．
<gadget id="calculator">0.8 - 0.1 - 0.1</gadget>
<output>0.6</output>

<gadget id="calculator">1.6 + 0.8 + 0.6</gadget>
<output>3</output>

<gadget id="calculator">3 / 2</gadget>
<output>3/2 = around 1.5</output>

<gadget id="calculator">(3/2) / 2</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">3 * (3/4) * 2</gadget>
<output>9/2 = around 4.5</output>

<result>9/2 = around 4.5</result>