The side of the football goal in the stadium attached to the Normal University is a trapezoid, the length of the upper base is 0.8m, the length of the lower base is 2.4m, and the height is 1.2m. What is the sum of the areas of the two sides of the goal in square meters?
师大附小体育场的足球球门的侧面是一个梯形，其上底的长是0.8m，下底的长是2.4m，高为1.2m．这个球门两个侧面的面积的和是多少平方米？
<gadget id="calculator">0.8 + 2.4</gadget>
<output>3.2</output>

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

<gadget id="calculator">3.2 * 1.2 * (1/2) * 2</gadget>
<output>3.84</output>

<result>3.84</result>