A cuboid has a base area of 20.5 square meters and a height of 3.5 meters. What is its volume?
一长方体的底面积是20.5平方米，高3.5米，它的体积是多少？
<gadget id="calculator">20.5 * 3.5</gadget>
<output>71.75</output>

<result>71.75</result>