A cylindrical steel block with a base radius and a height of 6 decimeters is melted and cast into a cone of equal height. What is the area of the base of the cone in square decimeters?
一个圆柱形钢块，底面半径和高都是6分米，把它熔铸成一个等高的圆锥，这个圆锥的底面积是多少平方分米？
<gadget id="calculator">6 ** 2</gadget>
<output>36</output>

<gadget id="calculator">3 / 6</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">3.14 * 36 * 6 * (1/2)</gadget>
<output>339.12</output>

<result>339.12</result>