The base area of a cylinder is 12.56m, and the side area is 1.6m. What is the surface area of the cylinder in m2?
一个圆柱的底面积是12.56m，侧面积是1.6m，则这个圆柱的表面积是多少m2．
<gadget id="calculator">12.56 * 2</gadget>
<output>25.12</output>

<gadget id="calculator">1.6 + 25.12</gadget>
<output>26.72</output>

<result>26.72</result>