A square and a rectangle have the same area. The side length of the square is 8 cm, the length of the rectangle is 16 cm, and the width is cm.
一个正方形与长方形的面积相等．正方形的边长是8厘米，长方形的长是16厘米，宽是多少厘米．
<gadget id="calculator">8 / 16</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">8 * (1/2)</gadget>
<output>4</output>

<result>4</result>