If the sum of the circumferences of the two circles is 87.92 cm, and the diameter of the larger circle is three times that of the smaller circle, what is the area of the smaller circle in cm**2.
若两圆的周长和为87.92cm，并且大圆的直径是小圆直径的3倍，则小圆的面积为多少cm**2．
<gadget id="calculator">3 + 1</gadget>
<output>4</output>

<gadget id="calculator">87.92 / 3.14 / 4</gadget>
<output>7</output>

<gadget id="calculator">7 / 2</gadget>
<output>7/2 = around 3.5</output>

<gadget id="calculator">(7/2) ** 2</gadget>
<output>49/4 = around 12.25</output>

<gadget id="calculator">3.14 * (49/4)</gadget>
<output>38.465</output>

<result>38.465</result>