A cylindrical bucket has a diameter of 3 decimeters and a height of 4 decimeters measured from the inside of the bucket. What is the volume of the bucket?
一个圆柱形水桶，从桶内量得底面直径3分米，高是4分米，这个水桶的容积是多少升？
<gadget id="calculator">3 / 2</gadget>
<output>3/2 = around 1.5</output>

<gadget id="calculator">(3/2) ** 2</gadget>
<output>9/4 = around 2.25</output>

<gadget id="calculator">3.14 * (9/4) * 4</gadget>
<output>28.26</output>

<result>28.26</result>