If the central angle of the sector is 60°, how much does the area of the sector account for the area of the circle (fill in a fraction)
如果扇形的圆心角为60°，则扇形的面积占圆面积的多少﹙填几分之几﹚
<gadget id="calculator">60 / 360</gadget>
<output>1/6 = around 0.166667</output>

<result>1/6 = around 0.166667</result>