The three interior angles are 60° triangle, the perimeter is 48cm, what is the sum of its two sides in cm?
3个内角都是60°三角形，周长是48cm，它的两边之和是多少cm．
<gadget id="calculator">48 / 3</gadget>
<output>16</output>

<gadget id="calculator">16 * 2</gadget>
<output>32</output>

<result>32</result>