A cuboid has a length of 5m, a width of 3m, and a height of 0.5m. What is its volume in cubic meters?
一个长方体，长5m，宽是3m，高是0.5m，它的体积是多少立方米．
<gadget id="calculator">5 * 3 * 0.5</gadget>
<output>7.5</output>

<result>7.5</result>