The surface area of a cylinder is 314 square centimeters, and the radius of the base of the cylinder is high (1/3), what is the lateral area of the cylinder?
一个圆柱的表面积是314平方厘米，这个圆柱的底面半径是高的(1/3)，这个圆柱的侧面积是多少？
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">450 / 4</gadget>
<output>225/2 = around 112.5</output>

<gadget id="calculator">6.28 * (1/3) * (225/2)</gadget>
<output>235.5</output>

<result>235.5</result>