Divide the circle into two sectors, the ratio of the central angle is 1:4, the area of the small sector is 25 square centimeters, then how many square centimeters is the larger sector than the small sector.
将圆分成两个扇形，圆心角之比为1：4，小扇形的面积为25平方厘米，则大扇形比小扇形大多少平方厘米．
<gadget id="calculator">25 * 4</gadget>
<output>100</output>

<gadget id="calculator">100 - 25</gadget>
<output>75</output>

<result>75</result>