单选题The length of a rectangular kitchen floor is 3 feet more than its width, if the length of the floor is 12 feet, what is the area of the floor in square feet?A9B15C42D108E44
单选题
The length of a rectangular kitchen floor is 3 feet more than its width, if the length of the floor is 12 feet, what is the area of the floor in square feet?
A
9
B
15
C
42
D
108
E
44
参考解析
解析：
已知矩形的长为12英尺，而长比宽多3英尺，所以矩形的宽为9英尺，那么矩形的面积=长×宽=12×9=108平方英尺。
已知矩形的长为12英尺，而长比宽多3英尺，所以矩形的宽为9英尺，那么矩形的面积=长×宽=12×9=108平方英尺。
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