A factory builds a cylindrical pool with a bottom diameter of 8 meters and a height of 5 meters. Cement is spread around the pool and the bottom. What is the area of the cemented part?
某工厂修造一个圆柱形水池，底面直径是8米，高是5米，在水池的周围和底面抹上水泥，抹水泥部分的面积是多少平方米？
<gadget id="calculator">3.14 * 8 * 5</gadget>
<output>125.6</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">125.6 + 50.24</gadget>
<output>175.84</output>

<result>175.84</result>