A cylindrical pool has a bottom diameter of 5 meters and a depth of 1.6 meters. How many tons of water can this pool hold? (1 cubic meter of water weighs 1 ton)
一个圆柱形水池，底面直径5米，池深1.6米，这个水池最多可盛水多少吨？(1立方米的水重1吨)
<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) * 1.6 * 1</gadget>
<output>31.4</output>

<result>31.4</result>