triangle and a parallelogram have the same area and base. If the height of the triangle is 8 cm, what is the height of the parallelogram in cm?
面积和底都相等的一个三角形和一个平行四边形，如果三角形的高是8厘米，那么平行四边形的高是多少厘米．
<gadget id="calculator">8 / 2</gadget>
<output>4</output>

<result>4</result>