The area of a triangle is equal to the area of a parallelogram, and the base is also equal. If the height of the triangle is 26 decimeters, what is the height of the parallelogram in decimeters?
一个三角形的面积和一个平行四边形的面积相等，底也相等，如果这个三角形的高是26分米，那么这个平行四边形的高是多少分米．
<gadget id="calculator">26 / 2</gadget>
<output>13</output>

<result>13</result>