A parallelogram has a base of 3.6 decimeters and a height of 40 centimeters. If it is cut and supplemented into a trapezoid, what is the area of the trapezoid in square centimeters?
一个平行四边形，底3.6分米，高40厘米，把它割补成一个梯形，梯形的面积是多少平方厘米．
<gadget id="calculator">3.6 * 10</gadget>
<output>36</output>

<gadget id="calculator">36 * 40</gadget>
<output>1_440</output>

<result>1_440</result>