A cylindrical pool with a bottom radius of 4m and a pool depth of 3m, how many tons of water can this pool hold at most? (1m**3 of water weighs 1 ton)
一个圆柱形水池，底面半径4m，池深3m，这个水池最多可盛水多少吨？(1m**3的水重1吨)
<gadget id="calculator">4 ** 2</gadget>
<output>16</output>

<gadget id="calculator">3.14 * 16 * 3 * 1</gadget>
<output>150.72</output>

<result>150.72</result>