In a fan-shaped statistical chart, it means that the wheat planting area accounts for 20% of the total area, so what is the central angle of the wheat planting area?
在一个扇形统计图中，表示小麦种植面积占总面积的20%，那么小麦种植面积的圆心角是多少°
<gadget id="calculator">20 / 100</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">(1/5) * 360</gadget>
<output>72</output>

<result>72</result>