A parallelogram has the same base and area as a triangle, and the height of the triangle is 30 centimeters, what is the height of the parallelogram in centimeters
一个平行四边形与一个三角形的底和面积都相等，已知三角形的高是30厘米，那么平行四边形的高是多少厘米
<gadget id="calculator">1 / 2</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">(1/2) * 30</gadget>
<output>15</output>

<result>15</result>