The upper base of a trapezoid is 0.8m, the lower base is 0.6m, and the area is 0.98m**2. What is the height of the trapezoid in m?
一个梯形的上底是0.8m，下底是0.6m，面积是0.98m**2，这个梯形的高是多少m．
<gadget id="calculator">1 / 2</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">0.8 * (1/2)</gadget>
<output>0.4</output>

<gadget id="calculator">0.6 * (1/2)</gadget>
<output>0.3</output>

<gadget id="calculator">0.4 + 0.3</gadget>
<output>0.7</output>

<gadget id="calculator">0.98 / 0.7</gadget>
<output>1.4</output>

<result>1.4</result>