A rectangular frame with a length of 10 cm and a width of 8 cm is stretched into a parallelogram with a height of 9 cm. What is the area of the parallelogram in square centimeters?
把一个长10厘米，宽8厘米的长方形框架拉成高9厘米的平行四边形，这个平四边形的面积是多少平方厘米．
<gadget id="calculator">8 * 9</gadget>
<output>72</output>

<result>72</result>