The sum of the upper and lower bases of the trapezoid is 60 meters, and the height is 5 meters. What is the area of the trapezoid in square meters?
梯形上下底的和是60米，高是5米，梯形的面积是多少平方米．
<gadget id="calculator">5 / 2</gadget>
<output>5/2 = around 2.5</output>

<gadget id="calculator">60 * (5/2)</gadget>
<output>150</output>

<result>150</result>