The area of a parallelogram is 480 square centimeters, the height is 20 centimeters, and the base is in centimeters.
一个平行四边形的面积是480平方厘米，高是20厘米，底是多少厘米．
<gadget id="calculator">480 / 20</gadget>
<output>24</output>

<result>24</result>