The diameter of the small circle is equal to the radius of the large circle. The circumference of the small circle is 18.84. What is the area of the large circle in square centimeters?
小圆的直径与大圆的半径相等，小圆周长是18.84，大圆的面积是多少平方厘米．
<gadget id="calculator">18.84 / 3.14</gadget>
<output>6</output>

<gadget id="calculator">6 ** 2</gadget>
<output>36</output>

<gadget id="calculator">3.14 * 36</gadget>
<output>113.04</output>

<result>113.04</result>