Dig a cylindrical reservoir with a depth of 1.8m and a bottom diameter of 6m. How many square meters is the area where cement is to be plastered on the bottom and wall of the pool?
挖一个深1.8m，底面直径6m的圆柱形蓄水池．要在池的底面和池壁上抹水泥，抹水泥部分的面积是多少平方米？
<gadget id="calculator">3.14 * 6 * 1.8</gadget>
<output>33.912</output>

<gadget id="calculator">6 / 2</gadget>
<output>3</output>

<gadget id="calculator">3 ** 2</gadget>
<output>9</output>

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

<gadget id="calculator">33.912 + 28.26</gadget>
<output>62.172</output>

<result>62.172</result>