A cylinder and a cone have the same volume and height. The circumference of the base of the cylinder is 6.28 meters. What is the area of the base of the cone in square meters?
一个圆柱和一个圆锥的体积和高相等，圆柱的底面周长是6.28米，圆锥的底面积是多少平方米？
<gadget id="calculator">6.28 / 3.14 / 2</gadget>
<output>1</output>

<gadget id="calculator">1 ** 2</gadget>
<output>1</output>

<gadget id="calculator">3 / 1</gadget>
<output>3</output>

<gadget id="calculator">3.14 * 1 * 3</gadget>
<output>9.42</output>

<result>9.42</result>