There is a forest whose shape is approximately trapezoidal. Its upper base is 11.5 meters, its lower base is 13.5 meters, and its height is 9.6 meters. How many square meters does it occupy?
有一片树林的形状近似梯形，它的上底是11.5米，下底是13.5米，高是9.6米，它的占地面积大约是多少平方米？
<gadget id="calculator">11.5 + 13.5</gadget>
<output>25</output>

<gadget id="calculator">9.6 / 2</gadget>
<output>4.8</output>

<gadget id="calculator">25 * 4.8</gadget>
<output>120</output>

<result>120</result>