A and B are two cylinders with the same base area. The height of A cylinder is 6.28 cm, and the side expansion is a square. The height of B cylinder is 3.5 cm. What is its volume in cubic centimeters.
甲与乙是2个底面积相等的圆柱，甲圆柱高6.28厘米，侧面展开是正方形，乙圆柱高3.5厘米．它的体积是多少立方厘米．
<gadget id="calculator">2 * 3.14</gadget>
<output>6.28</output>

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

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

<gadget id="calculator">3.14 * 1 * 3.5</gadget>
<output>10.99</output>

<result>10.99</result>