The flower beds in a certain school are all round, with a diameter of 5 meters. If each flower bed is hooped with iron wire, how many meters of iron wire will be needed to hoop all 10 flower beds in the school?
某学校的花坛都是圆形的，直径均为5米，如果给每个花坛箍一圈铁丝，那么全校10个花坛全部箍完共需要铁丝多少米？
<gadget id="calculator">3.14 * 5 * 10</gadget>
<output>157</output>

<result>157</result>