If a cylinder with a diameter of 10 decimeters and a height of 10 decimeters is cut into two parts along its diameter, the sum of the surface areas of the two parts is increased by how many square meters compared with the surface area of the original cylinder.
把一个直径是10分米，高是10分米的圆柱体，沿着它的直径切成两部分，这两部分表面积的和比原来圆柱体的表面积增加了多少平方米．
<gadget id="calculator">2 / 100</gadget>
<output>1/50 = around 0.02</output>

<gadget id="calculator">10 * 10 * (1/50)</gadget>
<output>2</output>

<result>2</result>