The circumference of the bottom of the cylinder is 18.84 square decimeters, and the height is 10 decimeters. Find the surface area of the cylinder?
圆柱体底面周长是18.84平方分米，高10分米，求这个圆柱体的表面积？
<gadget id="calculator">18.84 * 10</gadget>
<output>188.4</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">188.4 + 56.52</gadget>
<output>244.92</output>

<result>244.92</result>