The base of a parallelogram is 8 decimeters long and 4.5 decimeters high, what is the area in square decimeters?
平行四边形的底边长8分米，高4.5分米，面积是多少平方分米．
<gadget id="calculator">8 * 4.5</gadget>
<output>36</output>

<result>36</result>