cylindrical pool has a bottom diameter of 8m and a height of (3/4) the diameter. If cement is applied to the inner wall of the pool, 5 kg of cement is used per square meter. How many kg is needed in total?
一个圆柱形水池，底面直径8m，高为直径的(3/4)，若在水池内壁涂水泥，每平方米用水泥5千克，共需要多少千克．
<gadget id="calculator">3 / 4</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">8 * (3/4)</gadget>
<output>6</output>

<gadget id="calculator">3.14 * 8 * 6</gadget>
<output>150.72</output>

<gadget id="calculator">8 / 2</gadget>
<output>4</output>

<gadget id="calculator">4 ** 2</gadget>
<output>16</output>

<gadget id="calculator">3.14 * 16</gadget>
<output>50.24</output>

<gadget id="calculator">150.72 + 50.24</gadget>
<output>200.96</output>

<gadget id="calculator">200.96 * 5</gadget>
<output>1_004.8</output>

<result>1_004.8</result>