triangle and a parallelogram have the same area and the same base. The height of the triangle is 12 cm. What is the height of the parallelogram in cm?
一个三角形与一个平行四边形面积相等，底也相等，三角形的高是12厘米，平行四边形的高是多少厘米．
<gadget id="calculator">12 / 2</gadget>
<output>6</output>

<result>6</result>