A cuboid whose cross-section is square has a cross-sectional area of 16 square centimeters and a surface area of 200 square centimeters, what is its volume in cubic centimetres?
一个横截面是正方形的长方体，横截面面积16平方厘米，表面积是200平方厘米，它的体积是多少立方厘米．
<gadget id="calculator">4 * 4</gadget>
<output>16</output>

<gadget id="calculator">16 * 2</gadget>
<output>32</output>

<gadget id="calculator">200 - 32</gadget>
<output>168</output>

<gadget id="calculator">168 / 16</gadget>
<output>21/2 = around 10.5</output>

<gadget id="calculator">16 * (21/2)</gadget>
<output>168</output>

<result>168</result>