In a circular garden, a rhododendron is planted approximately every 3.14 meters along its border, and a total of 10 azaleas are planted. What is the approximate area of the garden in square meters?
一个圆形花园，沿着它的边线大约每隔3.14米种一棵杜鹃花，一共种了10棵．这个花园的面积大约是多少平方米？
<gadget id="calculator">3.14 / 3.14 / 2</gadget>
<output>0.5</output>

<gadget id="calculator">10 * 0.5</gadget>
<output>5</output>

<gadget id="calculator">5 ** 2</gadget>
<output>25</output>

<gadget id="calculator">3.14 * 25</gadget>
<output>78.5</output>

<result>78.5</result>