A cylinder is cut along the diameter of the bottom surface, the cross-sectional area is 17 square centimeters, what is the side area of the cylinder in square centimeters?
一个圆柱沿底面直径切开，横截面面积是17平方厘米，圆柱侧面积是多少平方厘米．
<gadget id="calculator">17 * 3.14</gadget>
<output>53.38</output>

<result>53.38</result>