The perimeter of a right-angled trapezoid is 96 cm, the sum of the two bases is twice the two waists, and the ratio of the two waists is 3:5. Find the area of this trapezoid?
一个直角梯形的周长是96厘米，两底和是两腰的2倍，两腰之比是3：5，求这个梯形的面积？
<gadget id="calculator">2 + 1</gadget>
<output>3</output>

<gadget id="calculator">96 / 3</gadget>
<output>32</output>

<gadget id="calculator">96 - 32</gadget>
<output>64</output>

<gadget id="calculator">3 + 5</gadget>
<output>8</output>

<gadget id="calculator">3 / 8</gadget>
<output>3/8 = around 0.375</output>

<gadget id="calculator">32 * (3/8)</gadget>
<output>12</output>

<gadget id="calculator">12 / 2</gadget>
<output>6</output>

<gadget id="calculator">64 * 6</gadget>
<output>384</output>

<result>384</result>