A rectangular piece of paper with a length of 35 cm and a width of 15 cm is rolled into a cylinder, what is the lateral area of the cylinder in square centimeters?
一张长35厘米，宽15厘米的长方形纸卷成一个圆柱，圆柱的侧面积是多少平方厘米．
<gadget id="calculator">35 * 15</gadget>
<output>525</output>

<result>525</result>