A circular swimming pool with a diameter of 16 meters is built in the community. What is the circumference of the swimming pool in meters?
小区内修建一个直径是16米的圆形游泳池，这个游泳池的周长是多少米？
<gadget id="calculator">3.14 * 16</gadget>
<output>50.24</output>

<result>50.24</result>