A cylinder has a lateral area of 9.42 square centimeters and a height of 4 centimeters. What is the surface area of this cylinder in square centimeters?
一个圆柱的侧面积9.42平方厘米，高4厘米，这个圆柱的表面积是多少平方厘米．
<gadget id="calculator">9.42 / 4</gadget>
<output>2.355</output>

<gadget id="calculator">2.355 / 3.14 / 2</gadget>
<output>0.375</output>

<gadget id="calculator">0.375 ** 2</gadget>
<output>0.140625</output>

<gadget id="calculator">3.14 * 0.140625 * 2</gadget>
<output>0.883125</output>

<gadget id="calculator">0.883125 + 9.42</gadget>
<output>10.303125</output>

<result>10.303125</result>