The length of a rectangle is 28 cm and its width is 8 cm more than that. What is the area of the rectangle in square centimeters?
一个长方形的长是28厘米，比宽多8厘米，这个长方形的面积是多少平方厘米？
<gadget id="calculator">28 - 8</gadget>
<output>20</output>

<gadget id="calculator">28 * 20</gadget>
<output>560</output>

<result>560</result>