The base of the triangle is 1.2 decimeters and the height is 0.8 decimeters. What is its area in square decimeters?
三角形的底是1.2分米，高是0.8分米，它的面积多少平方分米．
<gadget id="calculator">0.8 / 2</gadget>
<output>0.4</output>

<gadget id="calculator">1.2 * 0.4</gadget>
<output>0.48</output>

<result>0.48</result>