circular flower garden has a circumference of 50.24 meters. (3/4) of the area is reserved for cultivating flower seedlings, and the rest is used for planting turf. How many square meters is the area for planting turf?
一个圆形花圃，周长50.24米，在它的里面留出(3/4)的面积培育花苗，其余用来种植草皮，种植草皮的面积是多少平方米？
<gadget id="calculator">50.24 / 3.14 / 2</gadget>
<output>8</output>

<gadget id="calculator">8 ** 2</gadget>
<output>64</output>

<gadget id="calculator">3 / 4</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">1 - (3/4)</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">3.14 * 64 * (1/4)</gadget>
<output>50.24</output>

<result>50.24</result>