cylindrical candle with a length of 6 cm and a circumference of the base of 6.28 cm is divided into 3 sections on average, and the surface of each candle is found.
将一根长6厘米，底面周长为6.28厘米的圆柱形蜡烛平均分成3段，求每段蜡烛的表面．
<gadget id="calculator">6 / 3</gadget>
<output>2</output>

<gadget id="calculator">6.28 / 3.14 / 2</gadget>
<output>1</output>

<gadget id="calculator">1 ** 2</gadget>
<output>1</output>

<gadget id="calculator">3.14 * 1 * 2</gadget>
<output>6.28</output>

<gadget id="calculator">6.28 * 2</gadget>
<output>12.56</output>

<gadget id="calculator">6.28 + 12.56</gadget>
<output>18.84</output>

<result>18.84</result>