A triangle and a parallelogram have the same base and height, the area of the triangle is 13.6dm**2 less than the area of the parallelogram, what is the area of the parallelogram dm**2.
一个三角形和一个平行四边形等底等高，三角形的面积比平行四边形的面积少13.6dm**2，平行四边形的面积是多少dm**2．
<gadget id="calculator">13.6 * 2</gadget>
<output>27.2</output>

<result>27.2</result>