The sum of the upper and lower bases of a trapezoid is 24 meters, and the height is 5 meters. What is the area?
一个梯形的上底和下底的和是24米，高是5米，面积是多少？
<gadget id="calculator">5 / 2</gadget>
<output>5/2 = around 2.5</output>

<gadget id="calculator">24 * (5/2)</gadget>
<output>60</output>

<result>60</result>