Put a conical lead block with a height of 9 cm into a cylindrical bucket filled with water. The bottom area of the bucket is 225 cm2. After the lead block is submerged in water, the water level rises by 2 cm. What is the area of the base of the conical lead block?
把一个高9厘米的圆锥形铅块放入装有水的圆柱形水桶中，水桶的底面积是225平方厘米，水浸没铅块后，水面上升了2厘米．圆锥形铅块的底面积是多少平方厘米？
<gadget id="calculator">3 / 9</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">225 * 2 * (1/3)</gadget>
<output>150</output>

<result>150</result>