The range of the automatic sprinkler head on the school lawn is 10 meters, what is the range that it can irrigate with one rotation.
学校草坪上自动喷水头的射程是10米，它转动一周能浇灌的范围是多少．
<gadget id="calculator">10 ** 2</gadget>
<output>100</output>

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

<result>314</result>