cylindrical steel with a length of 1.5 meters is cut into two equal sections, and the surface area increases by 1.6 square meters. What is the original volume of this steel?
一根长1.5米的圆柱形钢材，截成相等的2段后，表面积增加1.6平方米，这根钢材原来的体积是多少？
<gadget id="calculator">1.6 / 2</gadget>
<output>0.8</output>

<gadget id="calculator">0.8 * 1.5</gadget>
<output>1.2</output>

<result>1.2</result>