A rotary sprinkler can spray water 10 meters away, how many square meters can this sprinkler irrigate at most?
一个旋转喷水器能喷水10米远，这个喷水器最多能喷灌多少平方米的面积？
<gadget id="calculator">10 ** 2</gadget>
<output>100</output>

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

<result>314</result>