In a triangle and a parallelogram with equal area and height, if the base of the triangle is 5 cm, what is the base of the parallelogram in cm?
面积和高都相等的三角形和平行四边形中，如果三角形的底是5厘米，那么平行四边形的底是多少厘米．
<gadget id="calculator">5 / 2</gadget>
<output>5/2 = around 2.5</output>

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