There is a piece of parallelogram glass with a base of 28 decimeters and a height of 24 decimeters. What is the area of this glass?
有一块平行四边形的玻璃，底是28分米，高是24分米．这块玻璃的面积是多少？
<gadget id="calculator">28 * 24</gadget>
<output>672</output>

<result>672</result>