A cylinder has a base circumference of 18.84 decimeters and a height of 2 decimeters. The radius of its base is equal to the edge length of another cube. What is the sum of the surface areas of these two solid figures?
一个圆柱体的底面周长是18.84分米，高为2分米．它的底面半径和另一个正方体的棱长相等，这两个立体图形的表面积的和是多少平方分米．
<gadget id="calculator">18.84 * 2</gadget>
<output>37.68</output>

<gadget id="calculator">18.84 / 3.14 / 2</gadget>
<output>3</output>

<gadget id="calculator">3 ** 2</gadget>
<output>9</output>

<gadget id="calculator">3.14 * 9 * 2</gadget>
<output>56.52</output>

<gadget id="calculator">3 * 3 * 6</gadget>
<output>54</output>

<gadget id="calculator">37.68 + 56.52 + 54</gadget>
<output>148.2</output>

<result>148.2</result>