A 2-meter-long cuboid is cut into two small cuboids along the length, and the surface area is increased by 1.6 square meters compared to the original one. What is the volume of this lumber in cubic meters?
把一个根长2米的长方体木料沿着长切成两个小长方体，表面积比原来增加了1.6平方米，这根木料的体积是多少立方米．
<gadget id="calculator">1.6 / 2</gadget>
<output>0.8</output>

<gadget id="calculator">0.8 * 2</gadget>
<output>1.6</output>

<result>1.6</result>