The area of a parallelogram is 42 square centimeters. If the base remains the same and the height is tripled, what is the area?
一个平行四边形的面积是42平方厘米，如果底不变，高扩大到原来的3倍，面积变为多少．
<gadget id="calculator">42 * 3</gadget>
<output>126</output>

<result>126</result>