Build a cylindrical pool with a bottom diameter of 5m and a depth of 3m. Put cement around the pool and the bottom. How many cubic meters of water can this pool hold at most?
砌一个圆柱形的水池，底面直径是5m，深是3m，在池周围及底面抹上水泥，这个水池最多能装多少立方米的水？
<gadget id="calculator">5 / 2</gadget>
<output>5/2 = around 2.5</output>

<gadget id="calculator">(5/2) ** 2</gadget>
<output>25/4 = around 6.25</output>

<gadget id="calculator">3.14 * (25/4) * 3</gadget>
<output>58.875</output>

<result>58.875</result>