A base of a parallelogram is 6cm. If the base and the opposite side are increased by 2cm, and other conditions remain unchanged, the area will increase by 8C㎡. What is the area of the original parallelogram in C㎡.
一个平行四边形的一条底边为6cm，如果将这条底边及对边增加2cm，其他条件不变，面积就增加8C㎡，则原来平行四边形的面积是多少C㎡．
<gadget id="calculator">8 / 2</gadget>
<output>4</output>

<gadget id="calculator">4 * 6</gadget>
<output>24</output>

<result>24</result>