cylindrical pool has a bottom radius of 10 meters and a depth of 2.5 meters. How much water can this pool hold at most?
一个圆柱形水池，底面半径是10米，深2.5米，这个水池最多能盛多少方水．
<gadget id="calculator">10 ** 2</gadget>
<output>100</output>

<gadget id="calculator">3.14 * 100 * 2.5</gadget>
<output>785</output>

<result>785</result>