A parallelogram and a triangle have the same base and area. If the height of the parallelogram is 5 cm, what is the height of the triangle in cm?
一个平行四边形和一个三角形等底等面积，若平行四边形高5厘米，那么三角形的高是多少厘米．
<gadget id="calculator">5 * 2</gadget>
<output>10</output>

<result>10</result>