The school has a circular swimming pool with a bottom diameter of 40m and a depth of 2m. The water depth inside is 1.2m. If tiles are placed on the walls and bottom of the swimming pool, how many square meters will the tiled area be?
学校有一个圆形的游泳池，底面直径40m，深是2m，里面的水深是1.2m，如果给这个游泳池的四周墙壁和底面贴上瓷砖，贴瓷砖的面积是多少平方米？
<gadget id="calculator">3.14 * 40 * 2</gadget>
<output>251.2</output>

<gadget id="calculator">40 / 2</gadget>
<output>20</output>

<gadget id="calculator">20 ** 2</gadget>
<output>400</output>

<gadget id="calculator">3.14 * 400</gadget>
<output>1_256</output>

<gadget id="calculator">251.2 + 1_256</gadget>
<output>1_507.2</output>

<result>1_507.2</result>