The base of the parallelogram is 2.4 decimeters and the height is half of it. What is the area of the parallelogram in square decimeters?
平行四边形的底是2.4分米，高是它的一半，这个平行四边形的面积是多少平方分米．
<gadget id="calculator">2.4 / 2</gadget>
<output>1.2</output>

<gadget id="calculator">2.4 * 1.2</gadget>
<output>2.88</output>

<result>2.88</result>