A cylindrical pool, the inner wall and bottom of the pool must be inlaid with ceramic tiles, the diameter of the bottom of the pool is 6 meters, and the depth of the pool is 1.5 meters. How many square meters is the tiled area?
一个圆柱形水池，水池内壁和底面都要镶上瓷砖，水池底面直径6米，池深1.5米．镶瓷砖的面积是多少平方米？
<gadget id="calculator">3.14 * 6 * 1.5</gadget>
<output>28.26</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">28.26 + 28.26</gadget>
<output>56.52</output>

<result>56.52</result>