cuboid goldfish bowl is 7 decimeters long, 5 decimeters wide, and 8 decimeters high. The front glass is accidentally broken. What is the area of the glass used for repair?
一个长方体的金鱼缸，长是7分米，宽是5分米，高是8分米，前面的玻璃不小心被打坏了，修理时配上的玻璃面积是多少平方分米．
<gadget id="calculator">7 * 8</gadget>
<output>56</output>

<result>56</result>