The farm wants to build a circular valley sun flat with a circumference of 125.6 meters. If 6 kg of cement is used per square meter, how many kilograms of cement will be needed to build this sun valley flat?
农场要建一个周长为125.6米的圆形谷晒坪，如果每平方米用水泥6千克，新修建这个晒谷坪需要多少千克水泥？
<gadget id="calculator">125.6 / 3.14 / 2</gadget>
<output>20</output>

<gadget id="calculator">3.14 * 20 * 20 * 6</gadget>
<output>7_536</output>

<result>7_536</result>