A circular fish pond is built in a park, the diameter of the bottom of the fish pond is 20m, and the depth of the pond is 1.5m. If the bottom and inner wall of the aquarium are tiled, how many square meters is the area of the tiled part?
某公园修建一个圆形养鱼池，鱼池的底面直径是20m，池深1.5m．如果在养鱼池的底部和内壁贴瓷砖，贴瓷砖部分的面积是多少平方米？
<gadget id="calculator">3.14 * 20 * 1.5</gadget>
<output>94.2</output>

<gadget id="calculator">20 / 2</gadget>
<output>10</output>

<gadget id="calculator">10 ** 2</gadget>
<output>100</output>

<gadget id="calculator">3.14 * 100</gadget>
<output>314</output>

<gadget id="calculator">94.2 + 314</gadget>
<output>408.2</output>

<result>408.2</result>