A rectangular flower bed has a perimeter of 168 meters and its length is known to be 54.75 meters. What is the width of this rectangular flower bed in meters?
一个长方形花坛，它的周长是168米，已知它的长是54.75米，这个长方形花坛的宽是多少米？
<gadget id="calculator">168 / 2</gadget>
<output>84</output>

<gadget id="calculator">84 - 54.75</gadget>
<output>29.25</output>

<result>29.25</result>