A triangle and a parallelogram have the same area and the same base. If the height of the triangle is 26 cm, what is the height of the parallelogram?
一个三角形和一个平行四边形的面积相等，底也相等，如果三角形的高是26厘米，那么平行四边形的高是多少．
<gadget id="calculator">26 / 2</gadget>
<output>13</output>

<result>13</result>