A triangle and a parallelogram have the same base and the same area. It is known that the base of the parallelogram is 18 decimeters and the area is 360 square decimeters. What is the height of the triangle in decimeters?
一个三角形和平行四边形的底相等，面积也相等．已知平行四边形的底是18分米，面积是360平方分米．求三角形的高是多少分米？
<gadget id="calculator">2 / 18</gadget>
<output>1/9 = around 0.111111</output>

<gadget id="calculator">360 * (1/9)</gadget>
<output>40</output>

<result>40</result>