The area of a trapezoid is 2.89 square centimeters, the sum of the upper and lower bases is 3.4 centimeters, and what is the height in centimeters.
一个梯形的梯形的面积是2.89平方厘米，上、下底之和是3.4厘米，高是多少厘米．
<gadget id="calculator">2 / 3.4</gadget>
<output>0.588235</output>

<gadget id="calculator">2.89 * 0.588235</gadget>
<output>1.699999</output>

<result>1.699999</result>