cuboid bunker is 4 meters long, 2 meters wide, and 1 decimeter deep. What is the area of the bunker?
一个长方体沙坑，长4米，宽2米，深1分米．这个沙坑的占地面积是多少．
<gadget id="calculator">4 * 2</gadget>
<output>8</output>

<result>8</result>