A parallelogram iron plate has a base length of 80 decimeters and a height of 60 decimeters, what is its area in square decimeters?
一块平行四边形的铁板，底长80分米，高60分米，它的面积是多少平方分米．
<gadget id="calculator">80 * 60</gadget>
<output>4_800</output>

<result>4_800</result>