Two identical trapezoids can be put together to form a parallelogram with a base of 32 cm and a height of 15 cm. What is the area of each trapezoid?
两个完全一样的梯形，可以拼成一个底是32厘米、高是15厘米的平行四边形，每个梯形的面积是多少．
<gadget id="calculator">15 / 2</gadget>
<output>15/2 = around 7.5</output>

<gadget id="calculator">32 * (15/2)</gadget>
<output>240</output>

<result>240</result>