The base of a triangle is twice the base of the parallelogram, and the area is (1/3) the area of the parallelogram, then how many times the height of the parallelogram is the height of the triangle.
一个三角形的底是平行四边形底的2倍，面积是平行四边形面积的(1/3)，那么平行四边形的高是三角形高的多少倍．
<result>3</result>