A triangle and a parallelogram have the same area and the same base. The height of the parallelogram is 2.2 meters. What is the height of the triangle in meters?
一个三角形与一个平行四边形面积相等，底也相等，平行四边形的高是2.2米，三角形的高是多少米．
<gadget id="calculator">2.2 * 2</gadget>
<output>4.4</output>

<result>4.4</result>