A trapezoid with an area of 3.6㎡, the upper base is 2.4m, the height is 1.2m, what is the lower base in m?
一个面积为3.6㎡的梯形，上底是2.4m，高是1.2m，下底是多少m．
<gadget id="calculator">2 / 1.2</gadget>
<output>1.666667</output>

<gadget id="calculator">3.6 * 1.666667</gadget>
<output>6.000001</output>

<gadget id="calculator">6.000001 - 2.4</gadget>
<output>3.600001</output>

<result>3.600001</result>