A triangle and a parallelogram have the same area and the same height. If the base of the triangle is 25 cm, what is the base of the parallelogram in dm.
一个三角形和一个平行四边形的面积相等，高也相等．如果三角形的底是25cm，平行四边形的底是多少dm．
<gadget id="calculator">25 / 2 / 10</gadget>
<output>5/4 = around 1.25</output>

<result>5/4 = around 1.25</result>