Three small squares are used to form a rectangle, and the length of the formed rectangle is 9 cm, what is the area of the rectangle in square centimeters?
用三个小正方形拼成一个长方形，拼成的长方形的长是9厘米，则这个长方形的面积是多少平方厘米．
<gadget id="calculator">9 / 3</gadget>
<output>3</output>

<gadget id="calculator">9 * 3</gadget>
<output>27</output>

<result>27</result>