A metal cone with a height of 6 cm is completely submerged in a cylindrical container with a bottom radius of 10 cm. At this time, the water level in the container is 0.5 cm higher than before. What is the bottom area of the metal cone in cm?
把一个高6厘米的金属圆锥体，全部浸没在底面半径是10厘米的圆柱形容器中，这时容器中的水面比原来升高了0.5厘米，金属圆锥体的底面积是多少厘米？
<gadget id="calculator">10 ** 2</gadget>
<output>100</output>

<gadget id="calculator">3.14 * 100 * 0.5</gadget>
<output>157</output>

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

<gadget id="calculator">157 * (1/2)</gadget>
<output>157/2 = around 78.5</output>

<result>157/2 = around 78.5</result>