The school expands the flower bed. The original radius of the flower bed is 8 meters. The ratio of the expanded radius to the original is 5:4. How many square meters has the area of the flower bed increased after the expansion?
学校扩建花坛，原来的花坛半径是8米，扩建后的半径与原来的比是5：4．扩建后花坛的面积增加了多少平方米？
<gadget id="calculator">5 / 4</gadget>
<output>5/4 = around 1.25</output>

<gadget id="calculator">8 * (5/4)</gadget>
<output>10</output>

<gadget id="calculator">10 ** 2</gadget>
<output>100</output>

<gadget id="calculator">3.14 * 100</gadget>
<output>314</output>

<gadget id="calculator">8 ** 2</gadget>
<output>64</output>

<gadget id="calculator">3.14 * 64</gadget>
<output>200.96</output>

<gadget id="calculator">314 - 200.96</gadget>
<output>113.04</output>

<result>113.04</result>