The perimeter of a parallelogram vegetable field is 150m, the length of one side is 25m, and the height above the length of this bottom is 30m, then how many meters is the height of the other side?
一块平行四边形菜地的周长是150m，一条底长25m，这条底边长上的高是30m，则另一条边上的高是多少米？
<gadget id="calculator">150 / 2</gadget>
<output>75</output>

<gadget id="calculator">75 - 25</gadget>
<output>50</output>

<gadget id="calculator">30 / 50</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">25 * (3/5)</gadget>
<output>15</output>

<result>15</result>