There is a rectangular flower garden in the school. It is known that the length of the flower garden is 6.5 meters, and the width is 0.25 times the length. Find the area of the flower garden.
学校有一个长方形花圃，已知这个花圃的长是6.5米，宽是长的0.25倍，求花圃的面积．
<gadget id="calculator">6.5 * 0.25</gadget>
<output>1.625</output>

<gadget id="calculator">6.5 * 1.625</gadget>
<output>10.5625</output>

<result>10.5625</result>