The range of an automatic rotary sprinkler on the grass in the park is 10 meters. How many square meters of grass can it water?
公园草地上一个自动旋转洒水器的射程是10米，它能浇灌多少平方米的草地？
<gadget id="calculator">10 ** 2</gadget>
<output>100</output>

<gadget id="calculator">3.14 * 100</gadget>
<output>314</output>

<result>314</result>