A triangle and a parallelogram have the same base and area, and the height of the parallelogram is 3dm. What is the height of the triangle in dm?
一个三角形与一个平行四边形等底等面积，平行四边形的高是3dm，那么三角形的高是多少dm．
<gadget id="calculator">3 * 2</gadget>
<output>6</output>

<result>6</result>