The length of an overcoat of an extended matchbox is 6.5 centimeters, the width is 4.2 centimeters, and the height is 1.5 centimeters. What is the area of cardboard required to make the inner box and the overcoat of such a matchbox? (Consider the length, width, and height of the inner box and the jacket as the same number, and the seams are not counted)
一种加长火柴盒的外套长是6.5厘米，宽是4.2厘米，高是1.5厘米，做这样一个火柴盒的内盒和外套所需用的硬纸板的面积是多少？(把内盒与外套的长、宽、高看做相同的数，接缝处不计)
<gadget id="calculator">6.5 * 4.2</gadget>
<output>27.3</output>

<gadget id="calculator">1.5 * 6.5</gadget>
<output>9.75</output>

<gadget id="calculator">27.3 + 9.75</gadget>
<output>37.05</output>

<gadget id="calculator">37.05 * 2</gadget>
<output>74.1</output>

<gadget id="calculator">1.5 * 4.2</gadget>
<output>6.3</output>

<gadget id="calculator">6.3 + 9.75</gadget>
<output>16.05</output>

<gadget id="calculator">16.05 * 2</gadget>
<output>32.1</output>

<gadget id="calculator">32.1 + 27.3</gadget>
<output>59.4</output>

<gadget id="calculator">74.1 + 59.4</gadget>
<output>133.5</output>

<result>133.5</result>