The ratio of the radius of the base of a cylinder to the radius of the base of a cone is 4:1. The area of the base of the cone is 12.56 square meters. The height of the cylinder is 3 cm. What is the volume of the cylinder?
一个圆柱体的底面半径与一个圆锥体的底面半径之比为4：1，该圆锥体的底面积为12.56平方米，已知圆柱体的高为3厘米，试求圆柱体的体积是多少？
<gadget id="calculator">12.56 / 3.14</gadget>
<output>4</output>

<gadget id="calculator">2 * 4</gadget>
<output>8</output>

<gadget id="calculator">8 ** 2</gadget>
<output>64</output>

<gadget id="calculator">3 / 100</gadget>
<output>3/100 = around 0.03</output>

<gadget id="calculator">3.14 * 64 * (3/100)</gadget>
<output>6.0288</output>

<result>6.0288</result>