If the area of a rectangle is 3 square centimeters, what is the area of the rectangle if its length and width are increased by 10%.
长方形的面积为3平方厘米，把它的长和宽都增加10%后，这个长方形的面积是多少．
<gadget id="calculator">121 / 100</gadget>
<output>121/100 = around 1.21</output>

<gadget id="calculator">(121/100) * 3</gadget>
<output>363/100 = around 3.63</output>

<result>363/100 = around 3.63</result>