There are two iron wires with a length of 188.4 cm, respectively enclosing a square and a circle, which area is larger? How big is it?
有两根长188.4厘米的铁丝，分别围成一个正方形和一个圆，哪个面积大？大多少？
<gadget id="calculator">188.4 / 3.14 / 2</gadget>
<output>30</output>

<gadget id="calculator">30 ** 2</gadget>
<output>900</output>

<gadget id="calculator">3.14 * 900</gadget>
<output>2_826</output>

<gadget id="calculator">188.4 / 4</gadget>
<output>47.1</output>

<gadget id="calculator">47.1 * 47.1</gadget>
<output>2_218.41</output>

<gadget id="calculator">2_826 - 2_218.41</gadget>
<output>607.59</output>

<result>607.59</result>