The area of a parallelogram is 38dm**2, what is the area of a triangle with the same base and height as dm**2?
一个平行四边形的面积是38dm**2，与它等底等高的三角形的面积是多少dm**2．
<gadget id="calculator">38 / 2</gadget>
<output>19</output>

<result>19</result>