The diameter of the base of a cylinder is 10cm and the height is 12cm. What is the circumference of its side view in cm?
一个圆柱的底面直径是10cm，高12cm，它的侧面展开图的周长是多少cm．
<gadget id="calculator">3.14 * 10</gadget>
<output>31.4</output>

<gadget id="calculator">31.4 + 12</gadget>
<output>43.4</output>

<gadget id="calculator">43.4 * 2</gadget>
<output>86.8</output>

<result>86.8</result>