There is a cone-shaped pile of sand in a cement factory. The bottom area is 62.8 square meters, the height is 3 meters, and the sand weighs 1.5 tons per cubic meter. What is the mass of this pile of sand?
水泥厂有一堆圆锥形的沙子，底面积是62.8平方米，高3米，每立方米沙重啊1.5吨．这堆沙的质量是多少吨？
<gadget id="calculator">3 / 3</gadget>
<output>1</output>

<gadget id="calculator">62.8 * 1</gadget>
<output>62.8</output>

<gadget id="calculator">1.5 * 62.8</gadget>
<output>94.2</output>

<result>94.2</result>