The area of a trapezoid is 35 square centimeters, its upper base is 6 cm, and its height is 5 cm. What is its lower base in cm?
一个梯形的面积35平方厘米，它的上底6厘米，高5厘米，它的下底是多少厘米．
<gadget id="calculator">2 / 5</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">35 * (2/5)</gadget>
<output>14</output>

<gadget id="calculator">14 - 6</gadget>
<output>8</output>

<result>8</result>