If the upper base of a trapezoid is extended by 2 meters, the area increases by 6 square meters, and the original trapezoid becomes a rectangle with a length of 8 meters. What is the area of the original trapezoid in square meters?
一个梯形的上底延长2米，则面积增加6平方米，并且原梯形变成一个长8米的长方形，原来梯形的面积是多少平方米．
<gadget id="calculator">8 - 2</gadget>
<output>6</output>

<gadget id="calculator">6 + 8</gadget>
<output>14</output>

<gadget id="calculator">2 / 2 / 2</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">14 * 6 * (1/2)</gadget>
<output>42</output>

<result>42</result>