The upper base of the trapezoid is 12.6cm, the lower base is 5.4cm, the height is 12.5cm, what is the area in cm**2.
梯形上底是12.6cm，下底是5.4cm，高是12.5cm，面积是多少cm**2．
<gadget id="calculator">12.6 + 5.4</gadget>
<output>18</output>

<gadget id="calculator">12.5 / 2</gadget>
<output>6.25</output>

<gadget id="calculator">18 * 6.25</gadget>
<output>112.5</output>

<result>112.5</result>