There are two parallelograms with the same area. One has a base of 6 meters and a height of 3 meters, and the other has a base of 9 meters. What is the height in meters?
有两块面积相同的平行四边形地，一块地的底是6米，高是3米，另一块地的底是9米，高是多少米？
<gadget id="calculator">3 / 9</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">6 * (1/3)</gadget>
<output>2</output>

<result>2</result>