The base area of cube stone is 16 square decimeters, and the weight of stone per cubic decimeter is 2.8 kg. How much does this stone weigh in kilograms?
正方体石料的底面积是16平方分米，每立方分米的石料重2.8千克．这块石料重多少千克？
<gadget id="calculator">4 * 4 * 4 * 2.8</gadget>
<output>179.2</output>

<result>179.2</result>