The radius of the base of a cylinder is 2 decimeters and the height is 8 decimeters. What is the lateral area of the cylinder in square meters?
一个圆柱底面半径是2分米，高是8分米，这个圆柱的侧面积是多少平方米．
<gadget id="calculator">8 / 100</gadget>
<output>2/25 = around 0.08</output>

<gadget id="calculator">2 * 3.14 * 2 * (2/25)</gadget>
<output>1.0048</output>

<result>1.0048</result>