A cuboid of wood, its base area is 10 square centimeters, if it is cut into 3 sections, how many square centimeters will the surface area increase
一根长方体木料，它的底面积是10平方厘米，把它截成3段，表面积增加了多少平方厘米
<gadget id="calculator">3 - 1</gadget>
<output>2</output>

<gadget id="calculator">2 * 2 * 10</gadget>
<output>40</output>

<result>40</result>