The bases and areas of a triangle and a parallelogram are equal respectively. The height of the triangle is 5 cm. What is the height of the parallelogram?
一个三角形和一个平行四边形的底边和面积都分别相等，三角形的高是5cm，平行四边形的高是多少．
<gadget id="calculator">5 / 2</gadget>
<output>5/2 = around 2.5</output>

<result>5/2 = around 2.5</result>