A cylinder with a diameter of 10 cm and a height of 10 cm is cut into two parts along its diameter. The sum of the surface areas of the two parts is increased by how many square centimeters compared with the surface area of the original straight cylinder.
把一个直径是10厘米，高是10厘米的圆柱体，沿着它的直径切成两部分，这两部分表面积的和比原来直圆柱的表面积增加了多少平方厘米．
<gadget id="calculator">10 * 10 * 2</gadget>
<output>200</output>

<result>200</result>