If the base of a triangle is 2.4 meters and the height is 27 decimeters, what is the area of a parallelogram with the same base and height?
一个三角形的底是2.4米，高是27分米，与它等底等高的平行四边形的面积是多少平方分米．
<gadget id="calculator">2.4 * 10</gadget>
<output>24</output>

<gadget id="calculator">27 / 2</gadget>
<output>27/2 = around 13.5</output>

<gadget id="calculator">24 * (27/2) * 2</gadget>
<output>648</output>

<result>648</result>