The ratio of length to width of a rectangle is 2:1, and the perimeter of the rectangle is known to be 144 cm, what is its area in square centimeters?
一个长方形的长、宽的比是2：1，已知长方形的周长是144cm，它的面积是多少平方厘米？
<gadget id="calculator">1 + 2</gadget>
<output>3</output>

<gadget id="calculator">144 / 2 / 3</gadget>
<output>24</output>

<gadget id="calculator">24 * 2 * 24 * 1</gadget>
<output>1_152</output>

<result>1_152</result>