The school needs to build a cuboid drill platform with a length of 4.5 meters, a width of 3.5 meters and a height of 1.5 meters against the wall. A layer of cement should be applied to the surface (four sides) of the drill platform. How many square meters is the area to be covered with cement?
学校要靠墙修一个长4.5米，宽3.5米，高1.5米的长方体领操台，要在领操台的表面(四个面)抹一层水泥，求抹水泥的面积是多少平方米？
<gadget id="calculator">4.5 * 3.5</gadget>
<output>15.75</output>

<gadget id="calculator">4.5 * 1.5</gadget>
<output>6.75</output>

<gadget id="calculator">3.5 * 1.5 * 2</gadget>
<output>10.5</output>

<gadget id="calculator">15.75 + 6.75 + 10.5</gadget>
<output>33</output>

<result>33</result>