If the area of the circle is 8 times the area of the small circle, then how many times the radius of the large circle is the radius of the small circle.
圆环面积是小圆面积的8倍，则大圆半径是小圆半径的多少倍．
<gadget id="calculator">3 / 1</gadget>
<output>3</output>

<result>3</result>