The triangle and the parallelogram have the same base and the same area. The height of the triangle is 15 cm. What is the height of the parallelogram in cm?
三角形和平行四边形的底相等，面积也相等，三角形的高是15cm，平行四边形的高是多少cm．
<gadget id="calculator">15 / 2</gadget>
<output>15/2 = around 7.5</output>

<result>15/2 = around 7.5</result>