The perimeter of a rectangle is 52cm, and the ratio of length to width is 8:5. What is the area of the rectangle in cm**2.
一个长方形的周长是52cm，长和宽的比是8：5，这个长方形的面积是多少cm**2．
<gadget id="calculator">52 / 2</gadget>
<output>26</output>

<gadget id="calculator">8 + 5</gadget>
<output>13</output>

<gadget id="calculator">26 / 13</gadget>
<output>2</output>

<gadget id="calculator">2 * 8</gadget>
<output>16</output>

<gadget id="calculator">16 * 10</gadget>
<output>160</output>

<result>160</result>