The base of a parallelogram is 2.8dm, and the height is 1.2dm. What is the area of the triangle with the same base and height?
一个平行四边形的底是2.8dm，高是1.2dm，与它等底等高的三角形的面积是多少平方分米．
<gadget id="calculator">1.2 / 2</gadget>
<output>0.6</output>

<gadget id="calculator">2.8 * 0.6</gadget>
<output>1.68</output>

<result>1.68</result>